Answer this math question for 10 points

Answer This Math Question For 10 Points

Answers

Answer 1

The distance between the ladder's bottom and the wall is around 7.5 feet (rounded to the nearest tenth).

What is  Pythagorean Theorem?

The Pythagorean theorem is a basic mathematical theorem that describes the connection between the sides of a right triangle. It asserts that the square of the length of the hypotenuse (the side opposite the right angle) in a right triangle is equal to the sum of the squares of the other two sides.

The Pythagorean theorem can be stated mathematically as:

[tex]C^2 = A^2 + B^2[/tex]

where "C" indicates the length of the hypotenuse and "A" and "B" represent the lengths of the other two sides of the right triangle.

In this scenario, the ladder is the hypotenuse of a right-angled triangle, with the wall constituting one side and the distance between the bottom of the ladder and the wall forming the other.

Given,

Length of the ladder (hypotenuse) = 15 feet

Height of the ladder on the wall (one side) = 13 feet

Let's call the distance between the bottom of the ladder and the wall "x" feet.

Using Pythagorean theorem ,

[tex]15^2 = 13^2 + x^2[/tex]

225 = 169 + [tex]x^{2}[/tex]

[tex]x^{2}[/tex] = 225 - 169

[tex]x^{2}[/tex] = 56

x = [tex]\sqrt{56}[/tex]   (taking the square root of both sides)

x [tex]$\approx$[/tex] 7.5 feet

As a result, the distance between the bottom of the ladder and the wall is around 7.5 feet (rounded to the nearest tenth).

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Related Questions

2 pints
4 quarts
gallon
gallon
1
16
8 cups
19 quart
1 gallon
B
1 quart
2
(FO
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1 cup
(0
(W)
None
D
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Answers

The answer to the given question is You have a total of 40 cups.

How to solve

Convert each measurement to cups:

2 pints = 4 cups (1 pint = 2 cups)

4 quarts = 16 cups (1 quart = 4 cups)

1 gallon = 16 cups (1 gallon = 4 quarts = 16 cups)

1 quart = 4 cups

Add up the total cups:

4 cups (from 2 pints) + 16 cups (from 4 quarts) + 16 cups (from 1 gallon) + 4 cups (from 1 quart) = 40 cups

Answer: You have a total of 40 cups.

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If you have 2 pints, 4 quarts, 1 gallon, and 1 quart, how many total cups do you have?

The following numbers appear in a table of random digits:38683 50279 38224 09844 13578 28251 12708 24684A scientist will be measuring the total amount of leaf litter in a random sample (n =5) of forest sites selected without replacement from a population of 45 sites. The sites are labeled 01, 02, . . . ,45 and she starts at the beginning of the line of random digits and takes consecutive pairs of digits. Which of the following is correct?A) Her sample is 38, 25, 02, 38, 22B) Her sample is 38, 68, 35, 02, 22C) Her sample is 38, 35, 27, 28, 08D) Her sample is 38, 65, 35, 02, 79E) Her sample is 38, 35, 02, 22, 40

Answers

The correct answer is B) Her sample is 38, 68, 35, 02, 22. This is because the scientist is selecting a random sample of 5 forest sites from a population of 45 without replacement. She is using consecutive pairs of digits from the table of random digits to select her sample.

Starting at the beginning of the line of random digits, the first pair is 38, which corresponds to forest site 38. The second pair is 68, which corresponds to forest site 68. The third pair is 35, which corresponds to forest site 35. The fourth pair is 02, which corresponds to forest site 02. And the fifth pair is 22, which corresponds to forest site 22.
Now, let's select a random sample of 5 forest sites without replacement:
1) 38
2) 35
3) 02
4) 22
5) 24
Thus, the correct answer is not listed in the given options. However, based on the consecutive pairs of digits and following the process mentioned, the sample should be 38, 35, 02, 22, and 24.

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Five balls, A, B, C, D, and E, weigh 30g, 50g, 50g, 50g, and 80g each. Which ball weighs 30g?

Answers

Answer:

Step-by-step explanation:

C

Answer:

  A

Step-by-step explanation:

You want to know which ball weighs 30 g if balls A, B, C, D, E weigh 30, 50, 50, 50, 80 grams.

Correspondence

The given information does not say what the correspondence is between weights and ball designators. If we assume the given order is the same for designators as for weights, then the first letter corresponds to the first weight, and ...

  Ball A weighs 30 g.

__

Additional comment

If there's more to the question, you'd have to use that additional information to decide.

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courtney has $4.85 in nickels, quarters, and dimes. she has12 quarters and 7 nickels. how many more dimes than nickels does she have?

Answers

8

hope this helps !! :)

if all of the scores in the population are transformed into z-scores, what will be the values for the mean and standard deviation for the complete set of z-scores?

Answers

The Mean of the dispersion of z-scores will be 0, and the standard deviation will be 1. 

On the off chance that all of the scores within the populace are changed into z-scores, at that point the coming about the conveyance of z-scores will have a cruel (mean) of and a standard deviation of 1.

Usually, since the change of a crude score x to a z-score is given by:

z = (x - μ) / σ

where μ is the populace Mean.

and σ is the populace standard deviation.

When all scores within the populace are changed to z-scores, the Mean of the coming about dispersion of z-scores will be:

( Mean of z-scores)

= [(Mean  of crude scores) - μ] / σ

= (μ - μ) / σ =

So also, the standard deviation of the dissemination of z-scores will be:

(standard deviation of z-scores) = (standard deviation of crude scores) / σ = σ / σ = 1

In this manner,

The cruel of the dispersion of z-scores will be 0, and the standard deviation will be 1. 

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If all of the scores in the population are transformed into z-scores, the values for the mean and standard deviation for the complete set of z-scores will be a mean of 0 and a standard deviation of 1.

This is because the process of transforming scores into z-scores involves subtracting the mean of the population and dividing by the standard deviation, which effectively standardizes the data to have a mean of 0 and a standard deviation of 1. When all the scores in a population are transformed into z-scores, the mean of the complete set of z-scores will be 0 and the standard deviation will be 1. This is because z-scores represent the number of standard deviations a value is from the mean, and the transformation standardizes the distribution.

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What value would you use for height in the following equation if the question asks what length of time it would take the object to hit the ground?



h(t) = -16t2 +16r + 480

Answers

Solving for "t" gives us:  t = √(480- r)/16

So, we would use a value of zero for "h" in this equation to find the time it takes for the object to hit the ground.

What is equation?

A mathematical equation is a statement that demonstrates the equality of two expressions and typically includes variables, constants, and mathematical operations.

The equal sign (=) separates the two sides, which are labelled as the left-hand side (LHS) and the right-hand side (RHS).

An equation's two main functions are to find the values of the variables that satisfy the equation and to express a relationship between various quantities or variables.

The value of "h" in the equation represents the height of the object at a given time "t". If the question asks for the length of time it would take the object to hit the ground, we need to use the height of the object when it hits the ground, which is zero.

Therefore, we can set h(t) = 0 and solve for "t":

0 = -16t² + 16r + 480

Solving for "t" gives us:

t = √(480- r)/16

So, we would use a value of zero for "h" in this equation to find the time it takes for the object to hit the ground.

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Can someone help me asap? It’s due tomorrow. I will give brainliest if it’s correct!!

Answers

The sampling technique used is given as follows:

Convenience sampling.

How are samples classified?

A convenient sample is drawn from a conveniently available pool of options, as is the example of the friends of a person.A random sample is equivalent to placing all options into a hat and taking some of them.In a systematic sample, every kth element of the sample is taken.Cluster sampling divides population into groups, called clusters, and each element of the group is surveyed.Stratified sampling also divides the population into groups. However, an equal proportion of each group is surveyed.

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the life of light bulbs is distributed normally. the variance of the lifetime is 625 and the mean lifetime of a bulb is 530 hours. find the probability of a bulb lasting for between 547 and 580 hours. round your answer to four decimal places.

Answers

The probability of a bulb lasting between 547 and 580 hours is approximately 0.0392

To solve this problem, we first need to standardize the values using the formula

z = (x - μ) / σ

where

x is the value we want to find the probability for,

μ is the mean, and

σ is the standard deviation.

In this case, we want to find the probability that a bulb will last between 547 and 580 hours, so we need to find the z-scores for these values.

z1 = (547 - 530) / sqrt(625) = 1.72

z2 = (580 - 530) / sqrt(625) = 2.8

Next, we use a standard normal distribution table or calculator to find the probabilities for each z-score. For example, using a calculator, we can find that

P(z1 < Z < z2) = P(1.72 < Z < 2.8) ≈ 0.0392

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a random sample of 380 found that 67% of the readers owned a personal computer. find the value of the test statistic. round your answer to two decimal places.

Answers

The value of the test statistic is 6.51.

The test statistic for this problem can be calculated using the formula:

z = (p - P) / √(P * (1 - P) / n)

Where p is the sample proportion (0.67 in this case), P is the hypothesized population proportion (we don't know this value, so we assume it to be 0.5 for a two-tailed test), n is the sample size (380), and z is the standard normal distribution value corresponding to the level of significance.

Plugging in the values, we get:

z = (0.67 - 0.5) / √(0.5 * (1 - 0.5) / 380) = 6.51

So the value of the test statistic is 6.51.

The test statistic is a measure of how far the sample proportion deviates from the hypothesized population proportion under the null hypothesis. In this case, we assume that the population proportion is 0.5 (since we have no reason to believe otherwise), and we calculate the probability of observing a sample proportion of 0.67 or greater assuming this null hypothesis is true.

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A company is designing a new cylindrical water bottle. The volume of the bottle will be 150 cm^3. The height of the water bottle is 8.9 cm. What is the radius of the water​ bottle? Use 3.14 for π.

Answers

The radius of the water bottle which is in cylindrical shape is approximately 2.12 cm.

What is the cylindrical shape?

A cylinder is a three-dimensional shape that consists of two congruent, parallel circular bases that are connected by a curved lateral surface. The lateral surface of the cylinder is formed by a rectangle that is wrapped around the circular bases.

A cylinder can be thought of as a circular prism, where the bases are circles and the lateral surface is curved. The height of a cylinder is the perpendicular distance between the two bases, and the radius is the distance from the center of the base to the edge of the circular base.

According to the given information

The formula for the volume of a cylinder is V = πr^2h, where V is the volume, r is the radius, and h is the height. We can rearrange this formula to solve for the radius:

r = √(V/πh)

Substituting the given values, we have:

r = √(150/π(8.9))

r ≈ 2.12 cm (rounded to two decimal places)

Therefore, the radius of the water bottle is approximately 2.12 cm.

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Marven and three friends are renting a car for a trip. Rental prices are
shown in the table.
Item
PART B
Small car rental fee
-seats 4 passengers
Full-size car rental fee
-seats 4 passengers
Insurance
Price
465=25x
$39/day
$49/day
$21/day
25
(X=18.6
-198
018.6
1465
LIS
If they still use the coupon, how many days could they rent the small car
with insurance if they have $465 to spend?

Answers

Since they can't rent for a fraction of a day, the maximum number of days they can rent the small car with insurance is 10 days.

Insurance calculation.

The total cost of renting a small car with insurance is:

$465 = $25x + $21x

Simplifying and solving for x, we get:

$465 = $46x

x = 10.11

Since they can't rent for a fraction of a day, the maximum number of days they can rent the small car with insurance is 10 days.

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PLS help id rlly appreciate it and dont guess the answer if u dont know it. If you dont know then u dont know. if u do know the answer let me know ty! (giving out 11 points, no links pls)

Answers

The answer of the given question based on the graph is , option (b)  the function of the given graph could be f(x) = (x+2)(x − 2)³ (x-5)².

What is Function?

A function is a relationship between a set of inputs (called the domain) and a set of possible outputs (called the range) with the property that each input is related to exactly one output.

A function is typically represented symbolically by an equation that describes how the output depends on the input. For example, the function f(x) = 2x + 3 represents a relationship between the input x and the output 2x + 3, which is obtained by multiplying x by 2 and then adding 3.

The given graph has three x-intercepts at x=-2, x=2, and x=5. It also has a local minimum at x=4, where the function crosses the x-axis.

From the information given, we can see that f(x) has factors of (x+2), (x-2), and (x-5) raised to some power, which account for the x-intercepts.

We also know that the function changes sign at x=4, which means there must be a factor of (x-4) or (4-x) in the function.

Based on this information, we can eliminate options (a) and (d) since they do not include a factor of (x-4) or (4-x).

Option (c) includes an additional factor of (x-4), which would account for the sign change at x=4, but it has the same power on (x+2) as on (x-2), which is not consistent with the graph. Therefore, we can eliminate option (c).

This leaves us with option (b), which has the correct factors and powers to account for the x-intercepts and the sign change at x=4. Therefore, the function of the given graph could be f(x) = (x+2)(x − 2)³ (x-5)².

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please help with these 3!

Answers

The pounds of marbles that Marco will need will be 357 pounds.

What is ratio?

Ratio refers to the quantitative relationship between two or more values or quantities. It expresses the proportion of one quantity to another, typically using a colon or a slash to separate the two values. For example, a ratio of 2:1 would indicate that one value is twice as large as the other.

Ratios are often used in mathematics, finance, and other fields to compare values and make decisions based on their relationships.

The pounds of marbles that Marco will need will be:

= 21 + 56 + 77 + 98 + 105

= 357

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Special Right Triangles (Radical Answers)

The triangle below is equilateral. Find the length of side x in simplest radical form with a rational denominator.

Answers

The triangle is given as equilateral and the length of the perpendicular of the given equilateral triangle is 13.85.

What is  Pythagorean theorem?

It states that the sum of the squares of the two shorter sides of a right triangle is equal to the square of the hypotenuse, the longest side of the triangle. This theorem can be used to determine the length of the sides of a right triangle if two sides are known.

The triangle is given as equilateral. As we know he perpendicular in a equilateral triangle divides a line into to equal parts, so

Base= 8+8

= 16

As it is a equilateral triangle, all the sides will be equal.

Now, we can use the Pythagorean theorem to find the length of the perpendicular, which can be found by using the formula:

16²= 8² + x²

x² = 16²- 8²

x = √192

x = 13.85

Thus, the length of the perpendicular of the given equilateral triangle is 13.85.

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Rick is building a sandbox for his cousins in the shape of a parallelogram. When drawn on a coordinate plane, the sandbox has vertices at (-4,0), (-2,6), (4,0), and (2,-6). If every unit represents a foot, what area does the sandbox cover?

~a.) 24ft²
~b.) 36ft²
~c.) 48ft²
~d.) 64ft²

Answers

The area of the sandbox of parallelogram shape is approximately 22.47 square feet. Rounded to the nearest integer, the answer is (a) 24ft².

What is a parallelogram?

A parallelogram is a quadrilateral with two pairs of parallel sides. Opposite sides of a parallelogram are equal in length and parallel to each other. Additionally, opposite angles of a parallelogram are congruent (i.e., have the same measure).

According to the given information

We can choose any side of the parallelogram as the base, and the distance from that side to the opposite side as the height. Let's choose the side between (-4,0) and (-2,6) as the base. The length of this side is the distance between these two points:

√[(-2-(-4))² + (6-0)²] = √40 = 2√10

The height of the parallelogram is the distance between the line containing (-2,6) and (4,0) and the point (2,-6). We can find the equation of the line containing (-2,6) and (4,0) by finding the slope and y-intercept:

Slope: (0-6)/(4-(-2)) = -6/6 = -1

Y-intercept: y = mx + b -> 0 = (-1)(4) + b -> b = 4

Therefore, the equation of the line is y = -x + 4. We can find the distance between this line and the point (2,-6) by substituting x = 2 into the equation and finding the corresponding y-value:

y = -x + 4 = -2

The distance between the line and the point (2,-6) is the absolute value of the difference between the y-coordinate of the point and the y-coordinate of the line:

|(-6) - (-2)| = 4

Therefore, the height of the parallelogram is 4 feet.

The area of the parallelogram is then:

A = base x height = (2√10) x 4 = 8√10

Rationalizing the denominator, we get:

A = 8√10 x √10/√10 = 80/√10 = 80√10/10 = 8√10

Therefore, the area of the sandbox is approximately 22.47 square feet. Rounded to the nearest integer, the answer is (a) 24ft².

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Helppp
Please
I need help

Answers

According to the information, the surface area of the first prism is 795 cm², sencond prism is 843 in², and the cylinder is 3775.87 mm²

How to find the surface area of two triangular prims?

To find the surface area of two triangular prisms, we need to add the surface area of each prism. We can use the formula we found in the previous question to calculate the surface area of each triangular prism:

Surface area of first triangular prism = 2(0.5 x base x height) + perimeter x height

where base is the width of the triangular face, height is the height of the triangular face, and perimeter is the sum of the lengths of the three sides of the triangular face.

In this case, the first triangular face has a base of 9 cm, a height of 16 cm, and a perimeter of (9+15+12)=36 cm. Therefore, the area of each triangular face is:

0.5 x 9 cm x 16 cm = 72 cm²

The rectangular faces have dimensions of 9 cm x 15 cm, 15 cm x 16 cm, and 9 cm x 16 cm. Therefore, the area of each rectangular face is:

9 cm x 15 cm = 135 cm²

15 cm x 16 cm = 240 cm²

9 cm x 16 cm = 144 cm²

The total surface area of the first triangular prism is:

2(72 cm²) + (135 cm² + 240 cm² + 144 cm²) = 795 cm²

Similarly, for the second triangular prism, we have:

Surface area of second triangular prism = 2(0.5 x base x height) + perimeter x height

where base is the width of the triangular face, height is the height of the triangular face, and perimeter is the sum of the lengths of the three sides of the triangular face.

In this case, the second triangular face has a base of 8 in, a height of 15 in, and a perimeter of (8+15+20)=43 in. Therefore, the area of each triangular face is:

0.5 x 8 in x 15 in = 60 in²

The rectangular faces have dimensions of 8 in x 21 in, 15 in x 21 in, and 8 in x 15 in. Therefore, the area of each rectangular face is:

8 in x 21 in = 168 in²

15 in x 21 in = 315 in²

8 in x 15 in = 120 in²

The total surface area of the second triangular prism is:

2(60 in²) + (168 in² + 315 in² + 120 in²) = 843 in²

Therefore, the surface area of two triangular prisms is:

795 cm² + 843 in² = 795 cm² + (843 in² x 6.452 cm²/in²) ≈ 5508 cm²

For the cylinder, we can use the formula we found in the previous question to calculate the surface area:

Surface area of cylinder = 2πr² + 2πrh

where r is the radius of the circular face, h is the height of the cylinder.

In this case, the radius is 14 mm and the height is 29 mm. Therefore, the surface area of the cylinder is:

2π(14 mm)² + 2π(14 mm)(29 mm) = 2π(14 mm)(43 mm) ≈ 3775.87 mm²

Therefore, the surface area of two triangular prisms and a cylinder is approximately:

5508 cm² + 3775.87 mm² = 5508 cm² + (3775.87 mm² x 0.01 m²/mm²) ≈ 5885.47 cm²

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TRUE or FALSE:In the data analysis step, the idea is to learn how information currently flows and to pinpoint why it is not flowing properly.

Answers

The goal of the data analysis stage is to figure out how information is currently flowing and why it isn't flowing properly. The statement is True.

The basic purpose of data analysis is to obtain meaningful insights and information from data by examining it. While knowing how information progresses is an important part of this process, the ultimate goal is to get a better knowledge of the data itself, as well as any patterns or correlations that may exist within it.

The process of troubleshooting and problem-solving is more directly tied to determining why information is not flowing properly. This may entail examining the data to discover any abnormalities, mistakes, or inconsistencies that may be interfering with information flow. Once these concerns have been recognized, efforts may be made to fix them and enhance information flow.

Therefore, the statement is true, the goal of the data analysis stage is to figure out how information is currently flowing and why it isn't flowing properly.

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TRUE. In the data analysis step, the focus is on examining and evaluating data to identify patterns, trends, and insights. The goal is to pinpoint any issues or inefficiencies in the way information flows and to determine the root cause of these problems.

By analyzing the data, organizations can gain a better understanding of their processes and identify areas for improvement.
 In the data analysis step, the goal is to examine and understand the current flow of information. This involves analyzing the data to identify patterns, trends, and any potential issues. By pinpointing the reasons why the information is not flowing properly, you can then work towards implementing solutions to improve the efficiency and effectiveness of the data management process.

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in a standard additions method workup what information from the linear regression is most closely related to the unknown concentration? (used to determine it)

Answers

In a standard additions method workup the information from the linear regression that is most closely related to the unknown concentration is this:  the intercept of the linear regression line.

What information is closest to the unknown concentration?

In the standard additions method workup, the information that is most closely related to the unknown concentration is the intercept of the linear regression line.

The reason why this is the case is that the intercept represents the y-value of the regression line where the line crosses the y-axis. This y-axis is the value of the dependent variable when the independent variable or concentration is zero. So, by solving for the intercept, we can determine the concentration of the unknown sample.

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Find the three trigonometric ratios. If needed, reduce fractions.

Answers

Three trigonometric ratios are Sin C=21/29,Cos C=20/29, Tan C=21/20.

Define  trigonometric ratios

Trigonometric ratios, also known as trigonometric functions, are mathematical functions that relate the angles of a right triangle to the lengths of its sides. The three primary trigonometric ratios are sine (sin), cosine (cos), and tangent (tan), which are defined as follows:

Sine (sin) of an angle is defined as the ratio of the length of the opposite side to the length of the hypotenuse.Cosine (cos) of an angle is defined as the ratio of the length of the adjacent side to the length of the hypotenuse.Tangent (tan) of an angle is defined as the ratio of the length of the opposite side to the length of the adjacent side.

In the given triangle;

AB=21

BC=20

AC=29

Calculating trigonometric ratios;

Sin C=Perpendicular/Hypotenuse

=AB/AC

=21/29

Cos C=Base/Hypotenuse

=BC/AC

=20/29

Tan C=Perpendicular/Base

=AB/BC

=21/20.

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how to solve this equetion. a scientist used 786 millileters

Answers

The scientist used 0.786 liters of the liquid for the experiment.

Unit conversion:

Unit conversion is the process of converting a quantity expressed in one unit of measurement to an equivalent quantity expressed in a different unit of measurement.

To convert between different units of measurement, we need to use conversion factors, which relate to the two units.

In this case, the conversion factor is 1 liter = 1000 milliliters, which allows us to convert from milliliters to liters by dividing by 1000.

Here we have

A scientist used 786 millimeters  

To convert milliliters to liters, we need to divide by 1000 since there are 1000 milliliters in one liter.

So, to convert 786 milliliters to liters, we divide by 1000:

786 milliliters ÷ 1000 = 0.786 liters

Therefore,

The scientist used 0.786 liters of the liquid for the experiment.

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Complete Question:

A scientist used 786 milliliters of a liquid for an experiment. How many liters of the liquid did the scientist use for this experiment?

explain whether the two vector-valued functions you found in parts a and c should parameterize the same tangent line

Answers

No, the two vector-valued functions found in parts a and c should not parameterize the same tangent line. The vector-valued function found in part a is a linear function, while the vector-valued function found in part c is a quadratic function. Therefore, the two functions will not parameterize the same tangent line.

Some students at Cook Middle School and Elm Middle School participated in a survey. They were asked which sports drink they prefer: Gym Juice or Energy Flow. The two-way table shows the results. What is the relative frequency of all students surveyed who go to Cook Middle School and prefer Energy Flow?

Answers

The relative frequency of the given students surveyed and prefer to go to Cook Middle School and Energy Flow is equal to 0.4 or 40%.

The relative frequency of all students surveyed who go to Cook Middle School and prefer Energy Flow

= (Number of students go to Cook Middle School and prefer Energy Flow) /( total number of students surveyed)

From the given table,

The number of students who go to Cook Middle School and prefer Energy Flow is  equal to 20.

The total number of students surveyed is equal to 50.

The relative frequency of all students surveyed who go to Cook Middle School and prefer Energy Flow is,

= 20/50

= 0.4

Therefore, the relative frequency of all students surveyed going to the Cook Middle School and prefer Energy Flow is equal to 0.4 or 40%.

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The above question is incomplete, the complete question is :

Some students at Cook Middle School and Elm Middle School participated in a survey. They were asked which sports drink they prefer: Gym Juice or Energy Flow. The two-way table shows the results.

                       Gym Juice        Energy Flow   Total

Cook                   15                     20                    35

Elm                       5                     10                     15

Total                    20                     30                     50

What is the relative frequency of all students surveyed who go to Cook Middle School and prefer Energy Flow?

You lean a 13-foot ladder on a house so the bottom of the ladder is 5 feet from the house. From the top of the ladder, you can safely reach another 4 feet higher. Can you reach a window that is located 13 feet above the ground? Explain.

Answers

You can reach the window safely
You can do 13 - 5 = 8 and then add the 4 feet which would be 12 so you would be one foot under the window and it should be safe to reach. :)

58, 61, 71, 77, 91, 100, 105, 102, 95, 82, 66, 57

If a value of 98° is added to the data, how does the mean change?

The mean increases by 8.2°.
The mean decreases by 8.2°.
The mean increases by 1.4°.
The mean decreases by 1.4°.

Answers

"The mean increases by 8.2°."

What is mean?

The mean is a measure of central tendency that represents the average value of a set of numbers. It is calculated by adding up all the values in the set and dividing by the total number of values.

To find the mean of a set of data, you add up all the values in the set and divide the sum by the number of values in the set.

Let's first find the original mean of the data:

mean =[tex](58 + 61 + 71 + 77 + 91 + 100 + 105 + 102 + 95 + 82 + 66 + 57) / 12[/tex]

mean = [tex]825 / 12[/tex]

mean =[tex]68.75[/tex]

Now, if we add 98 to each value in the set, the new set becomes:

[tex](156, 159, 169, 175, 189, 198, 203, 200, 193, 180, 164, 155)[/tex]

To find the new mean, we add up all the values in the new set and divide the sum by the number of values in the set:

new mean =[tex](156 + 159 + 169 + 175 + 189 + 198 + 203 + 200 + 193 + 180 + 164 + 155) / 12[/tex]

new mean = [tex]2021 / 12[/tex]

new mean = [tex]168.42[/tex]

Therefore, the mean increases by 8.67 degrees (rounded to two decimal places). None of the given answer options are an exact match to this value, but the closest option is "The mean increases by 8.2°."

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"The mean increases by 8.2°."

What is mean?

The mean is a measure of central tendency that represents the average value of a set of numbers. It is calculated by adding up all the values in the set and dividing by the total number of values.

To find the mean of a set of data, you add up all the values in the set and divide the sum by the number of values in the set.

Let's first find the original mean of the data:

mean =(58+61+ 71+ 77+ 91+100+105+102+95+82+66+57)/12

mean = 825/12

mean = 68.75

Now, if we add 98 to each value in the set, the new set becomes:

156,159,169,175,189,198,203,200,193,180,164,155.

To find the new mean, we add up all the values in the new set and divide the sum by the number of values in the set:

new mean = (156+159+169+175+189+198+203+200+193+180+164+155)/12

new mean = 2021/12

new mean = 168.42

Therefore, the mean increases by 8.67 degrees (rounded to two decimal places). None of the given answer options are an exact match to this value, but the closest option is "The mean increases by 8.2°."

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Which expressions represent “the sum of 3 and n”?

Select all that apply

Answers

Answer:

Step-by-step explanation:

a- 3+n

Answer:

First option and Second option

Step-by-step explanation:

Hope it helps. Happy Easter Tuesday. Have a great day.

Ok, so I have a test on equations of circles in 2 days, so I need help with some of the lessons. The main lesson I'm VERY confused about is general forms and standard forms and how to convert them. The formula that I was given for general form was:
x^2+y^2+Dx+Ey+F=0
and the formula for standard form was:
(x-h)^2+(y-k)^2=r^2

I need help understanding how to go from general form to standard form when you don't have all the variables in the general form equation.
FYI, from the standard form, I also need to know how to go back to general form. If someone can give me an example, that would be great! Worth 50 points, will mark brainliest.

Answers

The explanation of how to convert a general form equation to a standard form equation is given below:

How to solve

Let's first look at how to convert a general form equation to a standard form equation. Given a general form equation:

x^2 + y^2 + Dx + Ey + F = 0

Complete the square for both x and y:

a. Divide the coefficients D and E by 2, and square the results. Let's call these values Cx and Cy:

Cx = (D/2)^2

Cy = (E/2)^2

b. Add and subtract Cx and Cy on both sides of the equation:

x^2 + Dx + Cx + y^2 + Ey + Cy = -F + Cx + Cy

Rearrange the equation to form the standard form equation:

a. Group the x and y terms and rewrite as perfect squares:

(x + D/2)^2 + (y + E/2)^2 = -F + Cx + Cy

b. Now, compare this to the standard form equation:

(x - h)^2 + (y - k)^2 = r^2

c. Identify the values of h, k, and r:

h = -D/2

k = -E/2

r^2 = -F + Cx + Cy

Now let's see how to convert a standard form equation to a general form equation. Given a standard form equation:

(x - h)^2 + (y - k)^2 = r^2

Expand the squares:

(x^2 - 2hx + h^2) + (y^2 - 2ky + k^2) = r^2

Rearrange the equation to form the general form equation:

x^2 + y^2 - 2hx - 2ky + h^2 + k^2 - r^2 = 0

Compare this to the general form equation:

x^2 + y^2 + Dx + Ey + F = 0

Identify the values of D, E, and F:

D = -2h

E = -2k

F = h^2 + k^2 - r^2

Now you can convert equations between the general form and the standard form. If you're missing some variables in the general form equation, just treat them as zero and proceed with the same steps.

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at a booth at the school carnival in past years, they've found that 22% of students win a stuffed toy ($3.60), 16% of students win a jump rope ($1.20), and 6% of students win a t-shirt ($7.90). the remaining students do not win a prize. if 150 students play the game at the booth, how much money should the carnival committee expect to pay for prizes for that booth?: *

Answers

For a percentage data of students who play the different game and win the prize, the expected amount to pay for prizes for that booth by the carnival committee is equals to the $218.70.

We have a booth of school carnival in past years, The percentage of students win a stuffed toy = 22%

The percentage of students win a jump rope = 16%

The percentage of students win a t-shirt

= 6%

The winning amount for stuffed toy game = $ 3.60

The winning amount for jump rope game = $1.20

The winning amount for t-shirt game

= $7.90

The remaining students do not win a prize. Now, total number of students play the game at the booth = 150

So, number of students who win stuffed toy = 22% of 150 = 33

Number of students who win jump rope = 16% of 150 = 24

Number of students who win stuffed toy

= 6% of 150 = 9

For determining the expected pay using the simple multiplication formula. Total expected pay for prizes for that booth is equals to the sum of resultant of multiplcation of number of students who play a particular game into pay amount for that game. That is total excepted pay in dollars = 3.60 × 33 + 1.20 × 24 +7.90 × 6

= 218.7

Hence required value is $218.70.

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Use a table to show the sample space of two-digit numbers using the digits 9,4,5,8

Answers

the sample space of two-digit numbers using the digits 9, 4, 5, and 8 consists of 16 possible outcomes, and we can list all these outcomes in a table as shown above.

How to solve the question?

To create a sample space of two-digit numbers using the digits 9, 4, 5, and 8, we need to consider all possible combinations of these digits. We can list all possible outcomes in a table where each digit represents a column and each combination represents a row.

The first digit can be any of the four digits, and the second digit can also be any of the four digits, including the same digit as the first. Therefore, the total number of outcomes is 4 x 4 = 16.

Here is the sample space of two-digit numbers using the digits 9, 4, 5, and 8:

         9    4   5     8

9 99 94 95 98

4 49 44 45 48

5 59 54 55 58

8 89 84 85 88

As shown in the table, the first digit can be any of the four digits, and the second digit can also be any of the four digits. For example, the first row shows that the possible two-digit numbers starting with 9 are 99, 94, 95, and 98. Similarly, the second row shows that the possible two-digit numbers starting with 4 are 49, 44, 45, and 48, and so on.

In conclusion, the sample space of two-digit numbers using the digits 9, 4, 5, and 8 consists of 16 possible outcomes, and we can list all these outcomes in a table as shown above.

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Can someone help me?

Answers

answer

a 17× + 5× + 16 + 7

b 22× + 23

Step-by-step explanation:

the perimeter of a shape is calculated by adding up all the the sides.

part a asks you to use all four lengths so just place them side by side with the addition sign.

in part b you are asked to simplify it so you have to add the like terms. 17× and 15x add up to 22 and 16 and 7 add up to 23.this is the simplest we can go since 22x and 23 are not like terms.

hope this helps :)

how to write a thesis statement for this art piece


( Hubert Robert, Pont du Gard, 1787, oil on canvas (Musée du Louvre, Paris)

Answers

Answer: A possible thesis statement for this art piece could be:

Through his painting "Pont du Gard" (1787), Hubert Robert showcases his mastery of perspective and architectural detail, capturing the grandeur and beauty of the ancient Roman aqueduct and highlighting the interplay between nature and human engineering in the landscape.

Step-by-step explanation:

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