The Total Volume Of One Bottle Of Shampoo And One Bottle Of Conditioner Was 845 Milliliters. When Marco (2024)

Mathematics High School

Answers

Answer 1

The total initial volume of shampoo (x) is 525 milliliters, and the total initial volume of conditioner (y) is 320 milliliters. Let x represent the initial volume of shampoo and y represent the initial volume of conditioner.

1. The total initial volume of shampoo and conditioner combined is 845 milliliters. When Marco washed his hair, he used 2/35 of the shampoo and 4/45 of the conditioner, totaling 64 milliliters.

2. Let's set up equations based on the given information. We know that the total initial volume of shampoo and conditioner is 845 milliliters, so we have the equation x + y = 845.

3. Next, we can determine the amount of shampoo and conditioner Marco used. He used 2/35 of the shampoo, which can be expressed as (2/35)x, and 4/45 of the conditioner, which can be written as (4/45)y. The sum of these amounts is 64 milliliters, so we have the equation (2/35)x + (4/45)y = 64.

4. To find the values of x and y, we can solve these two equations simultaneously. We can multiply the second equation by 35 and the first equation by 45 to eliminate the fractions. This gives us 45x + 45y = 45 * 845 and 35x + 28y = 64 * 35.

5. Simplifying these equations, we have 45x + 45y = 38025 and 35x + 28y = 2240. Now, we can solve this system of equations using any method, such as substitution or elimination. Solving for x and y, we find x = 525 and y = 320. Therefore, the total initial volume of shampoo (x) is 525 milliliters, and the total initial volume of conditioner (y) is 320 milliliters.

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Related Questions

Lucy bought a new car for $25,000. The value of the car depreciated by 12% each year.

a)Write an exponential equation to model the value of the car (V) as a function of time (t)

b)How much will the car be worth after 5years?

Answers

a) The exponential equation to model the value of the car (V) as a function of time (t) can be written as V = 25000 * (0.88)^t, where t represents the number of years and 0.88 is the depreciation factor due to the 12% annual depreciation.

b) After 5 years, the car will be worth approximately $14,693.53.

a) To model the value of the car as a function of time, we can use the formula for exponential decay, where the initial value (V₀) is $25,000 and the decay factor (a) is 0.88 (representing the 12% annual depreciation).

Therefore, the exponential equation can be written as V = V₀ * a^t, which translates to V = 25000 * (0.88)^t.

b) To calculate the value of the car after 5 years, we substitute t = 5 into the equation:

V = 25000 * (0.88)^5

V ≈ 25000 * 0.5848

V ≈ 14,693.53

Hence, after 5 years, the car will be worth approximately $14,693.53.

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2

1

x−7=

3

1

(x−12)

Select all the systems of equations that have exactly one solution.

Select all the systems of equations that have exactly one solution.

Select all the systems of equations that have exactly one solution.

Select all the systems of equations that have exactly one solution.

Select all the systems of equations that have exactly one solution.

Select all the systems of equations that have exactly one solution.

Select all the systems of equations that have exactly one solution.

Select all the systems of equations that have exactly one solution.

Select all the systems of equations that have exactly one solution.

Select all the systems of equations that have exactly one solution.

Select all the systems of equations that have exactly one solution.

Select all the systems of equations that have exactly one solution.

2

1

x−7=

3

1

(x−12)

Answers

The system of equations with exactly one solution is A. {y = 3x + 1, y = −3x + 7}.

To determine which systems of equations have exactly one solution, we need to analyze the coefficients and constants in each equation.

A system of equations will have exactly one solution if the lines represented by the equations intersect at a single point. This occurs when the slopes (coefficients of x) and y-intercepts (constants) of the lines are different.

Let's analyze each option:

A. {y = 3x + 1, y = −3x + 7}

The slopes of both equations are 3 and -3, respectively, and they have different y-intercepts.

Therefore, this system has exactly one solution.

B. {y = 3x + 1, y = x + 1}

The slopes of both equations are 3 and 1, respectively, but their y-intercepts are the same.

This means the lines are parallel and will never intersect, so this system has no solution.

C. {y = 3x + 1, y = 3x + 7}

Both equations have the same slope (3) and different y-intercepts. This means the lines are parallel and will never intersect, so this system has no solution.

D. {x + y = 10, x + y = 12}

Both equations have the same slope (−1) and the same y-intercept (10 or 12). This means the lines are coincident (overlapping) and have infinitely many points of intersection, so this system has infinitely many solutions but not exactly one solution.

Therefore, the only system of equations with exactly one solution is A. {y = 3x + 1, y = −3x + 7}.

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The complete question =

Select all the systems of equations that have exactly one solution.

A. {y = 3x + 1 y =− 3x + 7

B. {y = 3x + 1 y = x + 1

C. {y = 3x + 1 y = 3x + 7

D. {x + y = 10 x + y = 12

Wyatt drew a map of Barton Springs Pool. On the map, 1/3inch represents 15 yards. The actual length of the pool is about 333 yards. What is the length in inches of the pool on the map?

Answers

7.4 inches is the length in inches of the pool on the map.

To find the length of the pool on the map in inches, we can set up a proportion using the given scale:

1/3 inch represents 15 yards

Let's denote the length of the pool on the map as "x" inches.

Using the proportion, we have:

(1/3) / 15 = x / 333

To solve for x, we can cross-multiply:

15 * x = (1/3) * 333

15x = 333/3

15x = 111

Dividing both sides by 15, we find:

x = 111 / 15

x ≈ 7.4

Therefore, the length of the pool on the map is approximately 7.4 inches.

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A shark is swimming at a depth of 75 ft. It swims towards the surface jumping out of the water to a height of 15 ft.

Answers

The shark travels a total vertical distance of 90 ft .The shark starts at a depth of 75 ft and jumps out of the water to a height of 15 ft. To calculate the total distance traveled by the shark.

we need to consider both the vertical distance it moves upwards and the initial depth it starts from.

The vertical distance traveled by the shark is the difference between the final height and the initial depth:

Vertical distance = 15 ft - (-75 ft) = 15 ft + 75 ft = 90 ft

Therefore, the shark travels a total vertical distance of 90 ft.

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Find the x-intercept of each line defined below and compare their values.Equation of Line A:y − 4 = -(x-4)

Answers

The x-intercept of each line defined below and their values will be as follows:

EQUATION OF LINE A:y - 4 = -(x - 4) or y = -x + 8

To find the x-intercept, substitute y = 0

0 = -x + 8x

= 8

Hence, the x-intercept of line A is 8.

To compare the x-intercept values with other lines, we would need the equations of those lines.

Without that information, it is not possible to compare the values.

To find the x-intercept of a line, substitute y = 0, and solve for x.

To compare the values of the x-intercepts of two or more lines, we need to find the x-intercepts of all lines and compare their values.

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the pentagon on the grid represents the front view of a dollhouse in Caylin's toy room. Use the grid to answer a-b

Answers

a. If each unit represents 1 cm, the length of each segment are:

AB: 10 cm, BC = 10 cm, CD = 5 cm, DE = 12 cm, EA = 5 cm.

b. The perimeter of the pentagon is 42 cm.

How to determine the length of each segment?

In order to determine the length of each segment, we would use the distance formula as follows;

Distance = √[(x₂ - x₁)² + (y₂ - y₁)²]

Where:

x and y represent the data points (coordinates) on a cartesian coordinate.

Part a.

By substituting the given end points into the distance formula, we have the following;

Length AB = √[(0 + 6)² + (8 - 0)²]

Length AB = √[36 + 64]

Length AB = √100

Length AB = 10 cm.

Length BC = √[(0 - 6)² + (8 - 0)²]

Length BC = √[36 + 64]

Length BC = √100

Length BC = 10 cm.

Length CD = EA = 5 × 1 cm.

Length CD = EA = 5 cm.

Length DE = 12 × 1 cm = 12 cm.

Part b.

Next, we would determine the perimeter of the pentagon as follows;

Perimeter of the pentagon = AB + BC + CD + DE + AE

Perimeter of the pentagon = 10 + 10 + 5 + 5 + 12

Perimeter of the pentagon = 42 cm.

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Missing information:

The question is incomplete and the complete question is shown in the attached picture.

The starting numbers for the patterns for x and y are shown in the table below.
The blanks in the table represent the next four terms for each of the patterns.
• The rule for the x-values is add 3.
•The rule for the y-values is add 6.
X
y
0
0
Which graph represents the ordered pairs of the first five terms of the patterns
from the table?

Answers

The graph that represents the ordered pairs of the first five terms of the patterns from the table is the line graph.

The graph that represents the ordered pairs of the first five terms of the patterns from the table is the **line graph**.

The x-values in the table are increasing by 3 each time, while the y-values are increasing by 6 each time. This means that the ordered pairs are forming a straight line. The line graph is the only graph that shows a straight line.

The other graphs are either curves or not straight lines. The **scatter plot** shows a cloud of points that are not evenly distributed. The **bar graph** shows a series of vertical bars that are not evenly spaced. The **histogram** shows a series of horizontal bars that are not evenly spaced.

Here is a table of the first five terms of the patterns from the table, along with the corresponding ordered pairs:

X | Y | Ordered Pair

-- | -- | --

0 | 0 | (0, 0)

3 | 6 | (3, 6)

6 | 12 | (6, 12)

9 | 18 | (9, 18)

12 | 24 | (12, 24)

As you can see, the ordered pairs form a straight line.

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An archaeologist at a dig sets up a coordinate system using string. Two similar artifacts are found: one at position (1, 4) and the other at (5, 2). How far apart were the two artifacts? Round to the nearest whole number if necessary.

Answers

The distance between the two artifacts is approximately 4.47 units.

The problem statement provides two coordinates (1, 4) and (5, 2).

Here (1,4) and (5,2) are known as position (x1,y1) and position (x2,y2), respectively.

Let's find the distance between the two artifacts.

An archaeologist at a dig sets up a coordinate system using string.

wo similar artifacts are found: one at position (1, 4) and the other at (5, 2).

How far apart were the two artifacts? Round to the nearest whole number if necessary.

Distance between two points is given by,`[tex]d = sqrt((x2-x1)^2+(y2-y1)^2)`d[/tex](rounded to two decimal places)

[tex]= sqrt((5 - 1)\² + (2 - 4)\²)d \\[/tex]

[tex]= sqrt((4)\² + (-2)\²)d[/tex]

[tex]= sqrt(16 + 4)d[/tex]

[tex]= sqrt(20)d = 4.47[/tex]

Therefore, the distance between the two artifacts is 4.

The distance between the two artifacts, located at coordinates (1, 4) and (5, 2), can be calculated using the distance formula:

[tex]d = sqrt((x2 - x1)^2 + (y2 - y1)^2)[/tex]

Plugging in the given values:

[tex]d = sqrt((5 - 1)^2 + (2 - 4)^2)d[/tex]

[tex]= sqrt(4^2 + (-2)^2)d[/tex]

[tex]= sqrt(16 + 4)d[/tex]

[tex]= sqrt(20)[/tex]

d ≈ 4.47 (rounded to two decimal places)

Therefore, the distance between the two artifacts is approximately 4.47 units.

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Deacon wants to order DVDs. Each DVD costs $12. 95, and he must pay a shipping and handling fee of $4. 95 for the entire order. Deacon must spend no more than the $75 gift card he has. Which inequality matches the situation? 12. 95 4. 95x < 75 12. 95 4. 95x Less-than-or-equal-to 75 12. 95x 4. 95 Greater-than-or-equal-to 75 12. 95x 4. 95 Less-than-or-equal-to 75.

Answers

Let x be the number of DVDs Deacon wants to order. Then the inequality that matches the situation "Deacon wants to order DVDs. Each DVD costs $12.95, and he must pay a shipping and handling fee of $4.95 for the entire order.

Deacon must spend no more than the $75 gift card he has" is:12.95x + 4.95 ≤ 75.Here's the explanation:If each DVD costs $12.95, then x DVDs will cost $12.95x. Deacon must also pay a shipping and handling fee of $4.95 for the entire order. Therefore, the total cost of the DVDs and the shipping and handling fee is:12.95x + 4.95.If Deacon must spend no more than the $75 gift card he has, then we can write the inequality:12.95x + 4.95 ≤ 75.This is because the total cost cannot be greater than $75. Therefore, the inequality that matches the situation is:12.95x + 4.95 ≤ 75, which is the third option listed above.

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Suppose we have two weighted coins, one of which comes up heads with probability 0. 3, and the other of which comes up heads with probability 0. 6. Unfortunately, the coins are otherwise identical, and we have lost track of which is which. Suppose we flip a randomly chosen coin 14 times and let N be the random variable giving the number of heads seen. If in the first 4 flips we see 3 heads, what is the conditional expected number of heads in the 14 flips?

Answers

E(N|3 heads) = P(A|3 heads) * (10 * 0.3) + P(B|3 heads) * (10 * 0.6). By substituting the calculated probabilities into the equation, we can determine the conditional expected number of heads in the 14 flips.

To find the conditional expected number of heads in the 14 flips, we need to consider the probabilities associated with each coin and their respective likelihoods of producing heads. Let's denote the two coins as Coin A (probability of heads = 0.3) and Coin B (probability of heads = 0.6).

We are given that in the first 4 flips, we observe 3 heads. We want to determine the conditional expected number of heads in the remaining 10 flips.

To solve this, we apply Bayes' theorem to calculate the probabilities of each coin being chosen, given the observed 3 heads in the first 4 flips.

Let P(A) and P(B) be the probabilities of choosing Coin A and Coin B, respectively. We can express P(A) and P(B) using the law of total probability:

P(A) = P(choose A) = 1/2 (since there are two equally likely coins)

P(B) = P(choose B) = 1/2

Using Bayes' theorem, we calculate the conditional probabilities of choosing each coin given the observed 3 heads in the first 4 flips:

P(A|3 heads) = (P(3 heads|A) * P(A)) / (P(3 heads|A) * P(A) + P(3 heads|B) * P(B))

P(B|3 heads) = (P(3 heads|B) * P(B)) / (P(3 heads|A) * P(A) + P(3 heads|B) * P(B))

Since we have lost track of which coin is which, we consider both possibilities. If Coin A is chosen, the remaining 10 flips have a probability of 0.3 for heads. If Coin B is chosen, the remaining 10 flips have a probability of 0.6 for heads. Thus, the conditional expected number of heads in the 14 flips can be calculated as:

E(N|3 heads) = P(A|3 heads) * (10 * 0.3) + P(B|3 heads) * (10 * 0.6)

By substituting the calculated probabilities into the equation, we can determine the conditional expected number of heads in the 14 flips.

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You have learned that different types of rocks are found in Earth’s layers. Their composition affects their densities. What can you conclude based on the information in the table?

Answers

As we move from the top layer (crust) to the bottom layer (lower mantle), the density of the Earth generally increases.

We have,

The table provided shows the density values for different layers of the Earth, specifically the crust, upper mantle, and lower mantle.

From the given data, we can observe that the density increases as we move from the top layer (crust) to the bottom layer (lower mantle).

The crust has the lowest density, ranging from 2.2 to 2.9 g/cm³.

As we move downwards to the upper mantle, the density increases to a range of 3.4 to 4.4 g/cm³.

Finally, in the lower mantle, the density further increases to a range of 4.4 to 5.6 g/cm³.

This pattern suggests that the materials present in the lower layers of the Earth are denser than those in the upper layers.

This aligns with the understanding that the Earth's interior becomes progressively denser towards the core, as different materials with varying densities and compositions are found at different depths.

The variation in density is attributed to the different compositions of rocks and minerals present in each layer.

The denser materials in the lower layers likely consist of heavier elements and compounds, contributing to the overall increase in density.

Therefore,

Based on the information in the table, we can conclude that there is a general trend of increasing density as we move deeper into the Earth's layers, from the crust to the upper mantle and then to the lower mantle.

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The complete question:

Density

Layer top bottom

crust 2.2 2.9

upper mantle 3.4 4.4

lower mantle 4.4 5.6

You have learned that different types of rocks are found in Earth’s layers. Their composition affects their densities. What can you conclude based on the information in the table?

Why is math considered to have a sequential learning pattern?.

Answers

Math is considered to have a sequential learning pattern because concepts and skills are introduced in a specific order, building upon previously learned material.

In math, concepts and skills are typically organized in a sequential manner, where each new topic builds upon what has been previously learned. This sequential learning pattern allows students to develop a solid foundation and gradually progress to more advanced topics.

For example, in elementary school, students first learn basic arithmetic operations like addition and subtraction before moving on to multiplication and division. These foundational skills are essential for understanding more complex mathematical concepts later on, such as algebra, geometry, and calculus. By following a sequential learning pattern, students can gradually develop their mathematical understanding and problem-solving abilities. They are able to connect new concepts to what they have already learned, reinforcing their knowledge and enabling them to apply it in different contexts. This sequential approach also ensures that students have the necessary prerequisite knowledge and skills to comprehend more advanced mathematical concepts. It helps create a logical progression in mathematical education, allowing students to build upon their previous knowledge and continually expand their mathematical abilities.

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the total amount of life insurance sold in 1950 was $231.5 billion. Since then, the annual increase has been estimated at 9.63% write the equation that could be used to find the amount of life insurance sold after x years

Answers

The equation that could be used to find the amount of life insurance sold after x years is:

P = 231.5 * (1 + 0.0963)^x

Let P be the total amount of life insurance sold after x years. We know that in 1950, the total amount of life insurance sold was $231.5 billion. Since then, the annual increase has been estimated at 9.63%.

To find the amount of life insurance sold after x years, we can use the following formula:

P = 231.5 * (1 + 0.0963)^x

Here, (1 + 0.0963) represents the factor by which the total amount of life insurance sold increases each year. We raise this factor to the power of x, which represents the number of years since 1950, to find the total increase in the amount of life insurance sold. We then multiply this increase by the initial amount of life insurance sold in 1950, which was $231.5 billion, to get the total amount of life insurance sold after x years.

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How can you use a number line to determine if fractions are equivalent

Answers

By using a number line to determine if fractions are equivalent is a straightforward and efficient method.

A number line can be used to determine if fractions are equivalent. The number line is a mathematical representation of real numbers and it allows the values to be plotted in a straight line in the order in which they appear. The position of a value on the number line is determined by its relationship to other values.

For instance, if you have two fractions, say 2/4 and 1/2, to determine if they are equivalent, you can represent them on a number line by plotting them at their respective positions. You then compare the two positions to see if they are in the same position on the number line. If they are, then the two fractions are equivalent. This method is especially useful when you are working with fractions that have different denominators and you need to compare them to determine their equivalence.

Therefore, using a number line to determine if fractions are equivalent is a straightforward and efficient method.

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An aeroplane flies from Sydney to Italy via the Middle East. The total

distance is 43 532 km. The distance between Sydney and the Middle East

is 21 477 km. What is the distance between the Middle East and Italy?

Answers

To find the distance between the Middle East and Italy, we can subtract the distance between Sydney and the Middle East from the total distance of the entire trip.

Given that the total distance is 43,532 km and the distance between Sydney and the Middle East is 21,477 km, we can calculate the distance between the Middle East and Italy as follows:

Distance between the Middle East and Italy = Total distance - Distance between Sydney and the Middle East

= 43,532 km - 21,477 km

= 22,055 km

Therefore, the distance between the Middle East and Italy is 22,055 km.

It's important to note that the distances provided in this answer are hypothetical and may not reflect the actual distances between the mentioned locations. Actual distances may vary based on flight routes, detours, and specific locations within the Middle East and Italy. For accurate information, it is recommended to consult official flight schedules or use reliable mapping tools.

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The table here lists the elevations in feet above sea level of four of the highest mountain peaks in the United States. Mount McKinley is the highest peak. The other 3 mountain peaks are almost all the same height. To the nearest tenth, how many times as high is the peak of Mount McKinley as the other mountain peaks?

Answers

Student B correctly calculated the difference in elevations as 20,602 feet.

How do we calculate?

We take a look at each students calculation:

Student A's calculation

The mistake in Student A's computation was that they should have removed the elevation of Mount McKinley's lowest point, which is 282 feet below sea level, rather than subtracting 282 from 20,320, which is the mountain's correct elevation.

Student A produced an inaccurate result because she subtracted 282 rather than added it.

Student B

This student recognized that the lowest point is below sea level and added the absolute value of 282 feet to the elevation of Mount McKinley. This results in the correct difference in elevations of 20,602 feet.

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#comlete question:

The highest point in North America, Mount McKinley, in the Alaska Range, is 20,320 feet above sea level. The lowest point m North America is 282 feet below sea level and is in Death Valley in California. Which student correctly calculated the difference in elevations? Explain the error.

Student A

20,320 - 282

20,320 + (-282)

20,038 feet

Student B

20,320 - ( -282)

20,320 + ( + 282)

20,602 feet

Could Somebody help me? thankyouChase has a savings account that compounds your interest quarterly at a rate of 2.5%You would like to save $30,000 for a down payment on a house in 10 years. How much should you deposit into a Chase savings account right now? (hint: use guess and check or use the Compound Interest Formula and solve for P since $30,000 is what it should equal in 10 years which is represented by A for Amount in the formula)

Answers

Chase should deposit $18,329.25 into their savings account right now to have $30,000 in 10 years.Let us first look at the given information:Rate of interest = 2.5% = 0.025.Compounding is done quarterly.

Amount to be saved in 10 years = $30,000To calculate how much should be deposited right now, we can use the compound interest formula. The formula is given as:A = P (1 + r/n)^(n*t)Where,A is the amount of money accumulated after t years,P is the principal amount (the initial amount of money deposited),r is the annual interest rate,n is the number of times that interest is compounded per year,t is the number of years that the money is investedIn this question, we need to find the principal amount, P.Let us substitute the given values into the formula. We know that the amount A is $30,000, t is 10 years, r is 2.5% and n is 4 since the interest is compounded quarterly.$30,000 = P (1 + 0.025/4)^(4*10)We can solve this equation for P by dividing both sides of the equation by (1 + 0.025/4)^(4*10).P = $18,329.25.

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A coin is flipped 8 times. Find the probability of the event:

exactly 5 heads

Answers

To find the probability of exactly 5 heads in 8 coin flips, we need to consider the total number of possible outcomes and the number of favorable outcomes.

In each coin flip, there are two possible outcomes: heads (H) or tails (T). Therefore, the total number of possible outcomes in 8 coin flips is 2^8 = 256.

To calculate the number of favorable outcomes, we need to determine the number of ways we can get exactly 5 heads in 8 coin flips. This can be calculated using the binomial coefficient, also known as "n choose k" (denoted as C(n, k)).

C(8, 5) = 8! / (5! * (8-5)!) = 56

The binomial coefficient tells us that there are 56 ways to choose 5 heads out of 8 coin flips.

So, the probability of getting exactly 5 heads in 8 coin flips is:

P(exactly 5 heads) = favorable outcomes / total outcomes

P(exactly 5 heads) = 56 / 256

P(exactly 5 heads) = 0.21875

Therefore, the probability of getting exactly 5 heads in 8 coin flips is approximately 0.21875 or 21.875%.

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On a coordinate plane, parallelogram R S T U is shown. Point R is at (1, 1), point S is at (7, 0), point T is at (10, 4), and point U is at (4, 5). If line segment RU is considered the base of parallelogram RSTU, what is the corresponding height of the parallelogram? 4. 5 units 5. 4 units 9. 0 units 10. 8 units.

Answers

The height of a parallelogram can be found using the formula: Height = Distance between the base and the opposite side.

Let's find the distance between line segment RU and the opposite side ST first. We can use the distance formula to find the distance between two points.DR = √(x2 − x1)² + (y2 − y1)²

Where (x1, y1) is the first point, (x2, y2) is the second point, and DR is the distance between them.Distance between R and TDT = √(10 - 1)² + (4 - 1)²

= √9² + 3²

= √81 + 9

= √90

Since line segment RU is parallel to ST, the distance from R to ST is the same as the distance from U to ST.Height of parallelogram RSTUH = DT = √90Answer: 8 units.

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Drag the number cards to create a correct sentence.

Use the sketch tool if it helps you with your thinking.

Answers

The correct number cards order to make a true sentences would be: 18 is 50% of 36 and 75% of 24.

First of all we must try different random numbers in the first part to find the first 2 numbers.

In the case of the number 18, we can affirm that it is 50% of 36 and we can verify it in the following way:

36 / 100 = 0.36

0.36 × 50 = 18

To verify the second part of the sentence we must perform the following operation:

18 / 3 = 6

6×4=24

24 / 100 = 0.24

0.24×75 = 18

According to the above, the correct number cards order to match a true sentences would be: 18 is 50% of 36 and 75% of 24.

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Which is the correct simplified version of the expression shown below after distributing and combining like terms? 4(9-3/4x)+6x

Answers

The correct simplified version of the expression 4(9-3/4x)+6x after distributing and combining like terms is: 33 - 6x. To understand the concept of distributing and combining like terms, let us first take a look at the original expression.

4(9-3/4x)+6xTo simplify this expression, we start by applying the distributive property of multiplication over addition. That is, we multiply the number outside the parentheses (4) by each term inside the parentheses. This gives us:36 - 3x + 6xNext, we combine like terms. Here, the like terms are -3x and 6x since they both have the variable x in them. When we combine them, we get 3x. Hence, we have:36 + 3xFinally, we simplify further by rearranging the terms in descending order of degree. This gives us the final expression:3x + 36However, this is not one of the answer options provided in the question.

Therefore, we need to simplify it further. We can do this by taking out a common factor of 3 from the two terms. This gives us:3(x + 12)We can check that this is the correct answer by distributing the 3 back in and confirming that we get the original expression. Therefore, the correct simplified version of the expression after distributing and combining like terms is: 33 - 6x.

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Two angles form a linear pair. The expression for one angle is x + 18 and the expression for the other is 2x. Find the measure of both angles

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The measure of the first angle is x + 18, and the measure of the second angle is 2x. To find the measure of both angles, we can set up an equation based on the fact that the two angles form a linear pair.

A linear pair consists of two adjacent angles that form a straight line, totaling 180 degrees. In this case, the measure of the first angle is given as x + 18, and the measure of the second angle is given as 2x. To find the values of x and the measures of both angles, we can set up the equation (x + 18) + (2x) = 180, representing the sum of the two angles. Simplifying the equation, we have 3x + 18 = 180. Subtracting 18 from both sides, we get 3x = 162. Dividing by 3, we find x = 54. Substituting the value of x back into the expressions for the angles, the measure of the first angle is 54 + 18 = 72 degrees, and the measure of the second angle is 2 * 54 = 108 degrees. Therefore, the first angle measures 72 degrees, and the second angle measures 108 degrees.

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The scores of a high school entrance exam are approximately normally distributed with a given mean Mu = 82. 4 and standard deviation Sigma = 3. 3. What percentage of the scores are between 75. 8 and 89? 68% 95% 99. 7% 100%.

Answers

The percentage of scores between 75.8 and 89 is: 0.95 or 95%.

To find the percentage of scores between 75.8 and 89, we need to calculate the z-scores for both values and then use the standard normal distribution table.

First, let's calculate the z-score for 75.8:

z1 = (75.8 - Mu) / Sigma = (75.8 - 82.4) / 3.3 ≈ -1.997

Next, calculate the z-score for 89:

z2 = (89 - Mu) / Sigma = (89 - 82.4) / 3.3 ≈ 1.997

Now, we can look up the corresponding areas under the standard normal distribution curve for these z-scores.

Using the standard normal distribution table, we find that the area to the left of z = -1.997 is approximately 0.025, and the area to the left of z = 1.997 is also approximately 0.975.

Therefore, the percentage of scores between 75.8 and 89 is:

0.975 - 0.025 = 0.95 or 95%.

Thus, the correct answer is 95%.

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A triangle sail has a base length of 2. 5 meters. The area of the sail is 3. 75 square meters. How tall is the sail

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The triangle sail has a base length of 2.5 meters and an area of 3.75 square meters. We need to determine the height of the sail.

The formula to calculate the area of a triangle is: Area = (1/2) x Base x Height. In this case, we know the base length is 2.5 meters and the area is 3.75 square meters.

Rearranging the formula to solve for the height, we have: Height = (2 x Area) / Base.

Substituting the values into the formula, we have: Height = (2 x 3.75) / 2.5. Simplifying the expression, we find that the height of the sail is 3 meters.

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You had to put all three of these animals in the same category, what features would you use to describe them? What other species might fit into that category?

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The category that would encompass all three animals could be "mammals with wings." The main feature used to describe these animals is the presence of wings, which indicates their ability to fly.

This characteristic is shared by bats, birds, and flying squirrels. While bats are the only true mammals with wings, birds possess wings that enable them to fly, and flying squirrels have specialized skin flaps that allow them to glide through the air. Despite the differences in their wing structures and evolutionary lineages, all three animals have independently developed adaptations for aerial locomotion.

Other species that might fit into this category include other types of bats, such as fruit bats, as well as various bird species like eagles, owls, and hummingbirds. Additionally, flying lemurs, also known as colugos, could be included in this category as they possess gliding membranes similar to flying squirrels. It's important to note that although these animals share the ability to fly or glide, they may have distinct anatomical and physiological adaptations that differentiate them from one another within the broader category of "mammals with wings."

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What is the sum of a geometric series of 12 terms that begins with 10 and has a common ratio of 2?

A) 240

B) 252

С) 20,480

D) 40,950

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The sum of the geometric series with 12 terms, starting from 10 and with a common ratio of 2, is 40,950.

To find the sum of a geometric series, we can use the formula:

S = a * (1 - r^n) / (1 - r)

Where:

S is the sum of the series,

a is the first term of the series,

r is the common ratio,

n is the number of terms in the series.

In this case, the first term (a) is 10, the common ratio (r) is 2, and the number of terms (n) is 12.

Plugging in the values into the formula, we have:

S = 10 * (1 - 2^12) / (1 - 2)

Simplifying further:

S = 10 * (1 - 4096) / (1 - 2)

S = 10 * (-4095) / (-1)

S = 10 * 4095

S = 40,950

Therefore, the sum of the geometric series with 12 terms, starting from 10 and with a common ratio of 2, is 40,950.

The correct answer is D) 40,950.

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The water slides have 37 temporary employees and 37 permanent employees. What percentage of the employees at the water slides are temporary?

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At the water slides, there are a total of 37 temporary employees and 37 permanent employees. To determine the percentage of employees who are temporary, 50% of the employees at the water slides are temporary employees.

The total number of employees at the water slides is the sum of temporary and permanent employees: 37 temporary + 37 permanent = 74 employees.
To find the percentage of temporary employees, we divide the number of temporary employees by the total number of employees and multiply by 100:
Percentage of temporary employees = (Number of temporary employees / Total number of employees) * 100
Plugging in the values:
Percentage of temporary employees = (37 / 74) * 100
Calculating this expression gives us:
Percentage of temporary employees = 0.5 * 100 = 50%
Therefore, 50% of the employees at the water slides are temporary employees.

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find tan 0 if 90 degrees <0 <180 degrees, and csc 0=5/4

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Given csc θ = 5/4. As we know that csc θ = 1/sin θ, we have: 1/sin θ = 5/4=>sin θ = 4/5; Therefore, tan 0 = -4/3.

Given, csc θ = 5/4=>sin θ = 4/5.

Since we know that in the second quadrant (90°<θ<180°), the tangent value is negative.

Therefore, we have to use the negative sign while finding the tangent value.

In the second quadrant, the cosine value is negative.

We can use the identity, tan θ = sin θ / cos θ.

Using this identity, we have: tan θ = sin θ / cos θ= 4/5 / (-3/5) = -4/3

Therefore, the value of tan 0 = -4/3.

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Vaughn made three times as many as 2 point baskets as 1 point baskets. He made a total of 16 baskets. How many of each type of baskets did he make?

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Vaughn made three times as many as 2 point baskets as 1 point baskets. He made a total of 16 baskets. So, It can be concluded that Vaughn made 4 1-point baskets and 12 2-point baskets.

Let's assume Vaughn made x 1-point baskets and y 2-point baskets.

According to the given information, Vaughn made three times as many 2-point baskets as 1-point baskets. Therefore, we can write the equation:

y = 3x

The total number of baskets made by Vaughn is 16. So we have another equation:

x + y = 16

Now we can substitute the value of y from the first equation into the second equation:

x + 3x = 16

Simplifying the equation:

4x = 16

Dividing both sides by 4:

x = 4

Now we can substitute the value of x back into the first equation to find y:

y = 3x

y = 3(4)

y = 12

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Which of the following is the most reasonable product of 6 15/17 and 8 21/22 ?

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One way to tackle this problem is to convert the mixed numbers to improper fractions, multiply the two fractions, and then convert the answer back to a mixed number.

The first mixed number can be converted to an improper fraction as follows: 6 15/17 = (6 × 17 + 15)/17 = 117/17. The second mixed number can be converted to an improper fraction as follows: 8 21/22 = (8 × 22 + 21)/22 = 181/22. Multiplying these two fractions yields: 117/17 × 181/22 = 21357/374. The product of 6 15/17 and 8 21/22 is 21357/374. To convert this improper fraction to a mixed number, divide the numerator by the denominator: 21357 ÷ 374 = 57, with a remainder of 243. Therefore, the mixed number is: 57 243/374. In mathematics, a mixed number is a number that includes a whole number and a fraction. A mixed number is a type of number that represents a quantity that is not a whole number. To multiply two mixed numbers, convert each mixed number to an improper fraction, multiply the two fractions, and convert the answer back to a mixed number. A mixed number can be converted to an improper fraction by multiplying the denominator by the whole number and then adding the numerator. To convert a mixed number to an improper fraction, multiply the denominator by the whole number and then add the numerator. For example, to convert the mixed number 6 15/17 to an improper fraction, multiply 6 by 17 to get 102, then add 15 to get 117. Therefore, 6/15/17 is equivalent to 117/17. To multiply two mixed numbers, convert each mixed number to an improper fraction, multiply the two fractions, and convert the answer back to a mixed number. In this example, the first mixed number is 6 15/17, and the second mixed number is 8 21/22. To convert 6 15/17 to an improper fraction, multiply 6 by 17 and add 15 to get 117. Therefore, 6/15/17 is equivalent to 117/17. To convert 8 21/22 to an improper fraction, multiply 8 by 22 and add 21 to get 181. Therefore, 8 21/22 is equivalent to 181/22. To find the product of two fractions, multiply the numerators and denominators together. In this example, the product of 117/17 and 181/22 is: 117/17 × 181/22 = 21357/374. To convert an improper fraction to a mixed number, divide the numerator by the denominator. The whole number is the result of the division, and the remainder is the numerator of the fraction. In this example, 21357 ÷ 374 = 57 with a remainder of 243. Therefore, the product of 6 15/17 and 8 21/22 is 57 243/374.

The most reasonable product of 6 15/17 and 8 21/22 is 57 243/374.

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The Total Volume Of One Bottle Of Shampoo And One Bottle Of Conditioner Was 845 Milliliters. When Marco (2024)
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