NEED THIS ASAP WILL GIVE BRAINLIEST HELP!

Answer:

For a rectangular prism-like swimming pool: \(V = w\cdot l \cdot h\). \(V = 360\,ft^{3}\) when \(h = 5\,ft\), \(l = 12\,ft\) and \(w = 6\,ft\).

Step-by-step explanation:

Let assume that swimming pool has a rectangular base and depth is the same  at any point at the bottom. In addition, let \(w\) and \(l\) be the width and length of the swimming pool. Then, the volume needed to fill the swimming pool is:

\(V = w\cdot l \cdot h\), where \(h\) is the depth of the pool.

Let be \(h = 5\,ft\), \(l = 12\,ft\) and \(w = 6\,ft\). The volume of the swimming pool is:

\(V = (6\,ft)\cdot (12\,ft)\cdot (5\,ft)\)

\(V = 360\,ft^{3}\)

The length of side PQ is 21 units.

Since the perimeter of a rectangle is the sum of all its sides, and we have the perimeter of the given rectangle as 84 units, we can use this information to find the length of side PQ.

Let's assume the length of side PQ is x units.

The given rectangle has two pairs of equal sides: PQ and RS are equal, and QR and PS are equal:

The perimeter (P) is given by:

P = 2(PQ) + 2(RS)

Since the perimeter of the given rectangle is 84 units, we can set up the equation:

84 = 2x + 2(RS)

But we also know that RS is equal to PQ, so we can replace RS with x:

84 = 2x + 2x

Now, combine the like terms:

84 = 4x

To find the value of x, divide both sides by 4:

x = 84 / 4

x = 21

So, the length of side PQ is 21 units.

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THATS A LOT

Step-by-step explanation:

a) The coefficient of variation (CV) for Brand A, is equals to the 2.8%.

b) The coefficient of variation (CV) for Brand B, is equals to the 2.0%.

c) Brand B, is more consistently produces tablets as advertised.

We have comparing data of consumer groups of vitamin C tablets of two brands. Tablets for each group were selected randomly. Data from above table, For brand A :

Tablets contains the quantity of vitamin C = 500 mg

Sample mean = 250

Standard deviation = 7

For brand B :

Tablets contains the quantity of vitamin C = 250 mg

Sample mean = 500

Standard deviations = 10

Cofficient of variation, CV is statistical parameter and it is the ratio of the standard deviation to the mean. Formula is, Coefficient of Variation (CV)

= (Standard Deviation/Mean) × 100.

a) To calculate the coefficient of variation (CV) for Brand A = (7/250 )×100

= 2.8%

b) To calculate the coefficient of variation (CV) for Brand B = (10/500 )×100

= 2.0%

c) As we see, Cofficient of variation of advertising for brand B is less than brand A. So, Brand B more consistently produces tablets as advertised.

Hence, required brand is brand B.

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Complete question:

consumer interest group is comparing two brands of vitamin C. One group advertises that its tablets contain 500 mg of vitamin C. The other advertises that its tablets contain 250 mg of vitamin C. Tablets for each group were selected randomly. The table above shows the results.Vitamin C Content (mg) Brand A (500 mg) x = 250s = 500Brand B (250 mg) x = 500s = 10

a) Calculate the coefficient of variation (CV) for Brand A (1point)

b) Calculate the coefficient of variation (CV) for Brand B (1 point)

c) Which brand more consistently produces tablets as advertised? (2 points) d) Explain your answer to c) above. (1 point)

Answer:

\(\%Percent = 28\%\) ---- Before Lunch

\(\%Percent = 72\%\) --- After Lunch

Step-by-step explanation:

Given

\(Total = 134\)

\(Before\ Lunch = 38\)

\(After\ Lunch = 96\)

Required

Determine the percentage of students seen in both cases.

This percentage is calculated by dividing the number of students seen by the total number of students. Then multiplied by 100%

i.e

\(\%Percent = \frac{Seen}{Total} * 100\%\)

- Before Lunch;

\(\%Percent = \frac{Before\ Lunch}{Total} * 100\%\)

\(\%Percent = \frac{38}{134} * 100\%\)

\(\%Percent = \frac{3800\%}{134}\)

\(\%Percent = 28\%\) --- approximated

- After Lunch;

\(\%Percent = \frac{After\ Lunch}{Total} * 100\%\)

\(\%Percent = \frac{96}{134} * 100\%\)

\(\%Percent = \frac{9600\%}{134}\)

\(\%Percent = 72\%\) --- approximated

The vertex of the given equation is (0,12) and (1, -10). The value of y-intercept will be -12.

Given equation :

y=(x−2)2−8

y = 2x - 4 - 8

= 2x - 12

The final equation is y = 2x - 12.

Compare this equation with slope and y-intercept formula :

y = mx+c

So that c = -12

The value of y-intercept according to the solution is -12.

To find the vertex. Let's assume x=0; Substitute in the equation

y = 2(0) -12

y = -12

The first vertex will be (0, -12)

If x = 1; y = 2(1) -12

y = -10

Then the second vertex will be (1, -10).

Hence, the vertex of the given equation is (0,12) and (1, -10). The value of y-intercept will be -12.

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The group of individuals fitting a description is called option D: Population, this is because, in statistics, a population is seen as am entire group of individuals, items, or elements that tends to have or share a common characteristics.

The term "population" describes the complete group of people or things that you are interested in investigating. It is the group of individuals or thing(s) about which you are attempting to draw conclusions.

There are infinite and finite populations. A population with a set quantity of people or things is said to be finite. An endless population is one that has an infinite amount of people or things.

Therefore, the correct option is D

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See full text below

A group of individuals fitting a description is the _____

Which of the term below fit the description above.

A.census

B.sample

C.parameter

D.population

Answer:

1.3

Step-by-step explanation:

8 divided by 6 = 1.3

BRAINLIEST PLEASE

Answer:

1.3

Step-by-step explanation:

Hope this helped have an amazing day!

The initial value of the exponential function shown on the graph is 2

The graph that completes the question is added as an attachment

The initial value of the exponential function shown on the graph is the point where the graph crosses the y-axis

From the attached graph, the equation crosses the y-axis at point (0,2)

This is represented as:

(x, y) = (0, 2)

Remove the x value

y = 2

Hence, the initial value of the exponential function shown on the graph is 2

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Answer:

538

Step-by-step explanation:

l x w

7x39

12x20

5x5

538

Answer:

2.45 gallons

Step-by-step explanation:

1. Translate \(16\frac{7}{8}\) into a whole number or decimal number: 14.

2. We know that Dr. Silvers filled her tank with 11.55 gallons of gas, so subtract 11.55 from 14.

\(14 - 11.55 = 2.45\)

3. There were 2.45 gallons of gas in Dr. Silvers gas tank before she filled it up.

Answer: this is the correct answer:

5  13/40

Step-by-step explanation:

believe me it's correct

Answer:

f(x) = -5/9x - 11/9

Step-by-step explanation:

Consider f(x) = y

so if x = -4 => y = 1 and x = 5 => y = -4

so (-4,1) and (5,-4) should be on the same linear equation

Slope m = (y2 - y1)/(x2 - x1)

m = (-4 - 1)/(5 -  -4) = (-5)/(9) = -5/9

y = mx + b

given m = -5/9, x = -4, y = 1

1 = -5/9(-4) + b

b = 1 - 20/9

b = 9/9 - 20/9 = -11/9

so y = -5/9x - 11/9

or f(x) = -5/9x - 11/9

We have to find the volume of each solution to make 16 gallons of a blend of 13% disinfectant solution.

Solution A has 11% disinfectant, while Solution B has 19% disinfectant.

We can call A and B to the volume of each respective solution.

The total volume (16 gallons) is made only from solutions A and B, so the sum of their volumes is equal to the total volume.

Then, we can write:

We can repeat this analyisis but only with the volume of pure disinfectant.

The total volume will be 0.13*16 = 2.08 gallons.

This will be made of the volume of disinfectant of solution A, which is 0.11*A, and the volume of disinfectant of solution B, which is 0.19*B.

Then, we can write:

We can now use the first equation to express B in function of A:

We can then replace B in the second equation and solve for A as:

Now, we can calculate B as:

Answer:

Volume of 11% disinfectant solution = 12 gallons.

Volume of 19% disinfectant solution = 4 gallons.

Answer:

44 or 4 double sqaure i don't understand

the answer is d. -5n - 6 :)

This gives the matrix [I|A]. Row operations can then be performed on the matrix to transform it into the form [I|B], where B is the inverse of A.

In order to use row operations to determine whether a given matrix is invertible and find its inverse if it is invertible, the following steps can be taken:

Step 1:

Write the given matrix with an identity matrix of the same order to its right. This gives a new matrix, [A|I].

Step 2:

Using elementary row operations, convert the matrix on the left to an identity matrix. This can be done by performing operations such as swapping two rows, multiplying a row by a nonzero constant, or adding a multiple of one row to another row.

Step 3:

The matrix on the right will now be the inverse of the original matrix if the matrix on the left was converted to an identity matrix.

If the matrix on the left cannot be converted to an identity matrix, then the original matrix is not invertible and does not have an inverse.

In this case, the matrix is said to be singular.

The process of using row operations to find the inverse of a matrix can be simplified by writing the identity matrix first and then the given matrix next to it.

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An expression that can be used to find the cost of an n-minute long distance call, where n is at least 5 minutes is (0.55 + (n - 5) x 0.07) dollars.

Given:

Long Distance Rates Time (minutes) Cost5 $0.556 $0.627 $0.698 $0.769 $0.8310 $0.90We need to find an expression that can be used to find the cost of an n-minute long-distance call, where n is at least 5 minutes.

The cost of making a long-distance call is given for 5 minutes, 6 minutes, 7 minutes, 8 minutes, 9 minutes, and 10 minutes.

We can observe from the above table that for every increase of 1 minute, the cost increases by $0.07.

We can conclude that the cost of n minutes long-distance call is given by: (0.55 + (n - 5) x 0.07) dollars when n is at least 5 minutes.

Therefore, the required expression is: (0.55 + (n - 5) x 0.07) dollars when n is at least 5 minutes. The above expression is based on the pattern in the table provided for long-distance call rates. We can use this expression for values of n greater than or equal to 5.

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Answer:

Jenny= Blonde/Curly

Abby= Black/Straight

Zeva= Red/Wavy

Step-by-step explanation:

Answer:

IT IS C (=_=)

Step-by-step explanation:

=======================================================

Reason:

Let,

From that we can see

Now use the slope formula

\(m = \frac{y_2-y_1}{x_2-x_1}\)

and you should find

The slopes don't match up. We need them to be the same number if we want the data set to be linear. The points A,B,C don't all fall on the same straight line.

This means we can rule out "linear" as one of the answer choices.

-------------------------

The temperature rising at first then falling later on seems to imply perhaps we have a parabola.

However, it's not truly parabolic. Plot the points on the same grid. Then use technology such as Desmos or GeoGebra to see that a parabola does not go through all the points. I used GeoGebra's polynomial interpolate feature.

There's a much longer method to verifying but it would take too long to write out. It involves substitution and solving a system of equations.

In short we cannot fit a true parabola to the data points.

Therefore, this data set is unfortunately not quadratic.

------------------------

Because the temperatures rise (54, 60, 67) but then fall (67, 60, 54), it suggests we cannot have an exponential function.

An exponential function either entirely increases over the entire domain, or entirely decreases. It can't do both. We consider exponential functions to be monotonic for this reason.

------------------------

Ultimately we have ruled out "linear", "quadratic", and "exponential".

There's nothing left to pick other than "none of these" as the final answer.

The value of f(5) is e^5 + 5/3, which is exactly 150.0798257693, and the value of f(11) is e^11 + 11/3, which is approximately 59877.808.

The function is f(x)= e^x + 1/3x

To find the value of f(5), put the value of x = 5 in the function f(x)= e^x + 1/3x. Which is equal to f(5) = e^5 + 5/3.

Similarly, to find the value of f(11), put the value of x = 11 in the function f(x)= e^x + 1/3x.

Which is equal to f(11) = e^11 + 11/3

f(11) = 59874.141715198 + 3.6666666667

f(11) = 59877.808381865

f(11) ≈ 59877.808

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Answer:

0.52014035087

Step-by-step explanation:

Answer:

0.51868439468

Step-by-step explanation:

In the equation y = 10 - 0.1x, the coefficient 0.1 represents the slope of the line.

it represents the rate of change of y with respect to x, which is the amount by which y changes for every unit increase in x.

In this case, the slope is negative (-0.1), which means that as the number of minutes on hold (x) increases by 1 unit, the level of satisfaction (y) decreases by 0.1 units.

In other words, the longer a customer spends on hold, the lower their level of satisfaction is likely to be. The slope is a key parameter in the equation and provides valuable information about the relationship between the two variables.

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Answer:

Kevin

Step-by-step explanation:

Answer:

28

Step-by-step explanation:

its vertically opposite

Answer:

28

Step-by-step explanation:

Vertical angles always have the same measure, so the measure of DFE would also be 28 degrees

The amount John saves off his minimums after 3 months is $450

From the question, we are to determine the amount John saves off his minimums after 3 months

The amount John saves off his minimums after 3 months =

($500 - $350) × 3

$150 × 3

= $450

Hence, the amount John saves off his minimums after 3 months is $450

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Based on the calculations, the ratio 28:40 is proportional to the ratio 7:10.

Ratio can be defined as a mathematical expression that is typically used to denote the proportion of two (2) or more quantities with respect to one another and the total quantities.

In this exercise, we would determine a ratio that is proportional to the given ratio by dividing it in simplest form as follows. Thus, we would divide both sides by 4:

\(28:40 = \frac{28}{4} :\frac{40}{4} =7:10\)

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Answer:

If x = 3, then y = -2 since the corresponding value of y for x=3 is -2 in the given table.

Step-by-step explanation:

The graph of the piecewise function is the one in option D-

First, we know that:

f(x) = 4  when x ≤ 3

So, we want to have a horizontal line in the left side of the graph, such that it ends in a closed circle at x = 3 (we need to have a closed circle because the symbol ≤ is used).

From the given graphs, the only one with that form is D.

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Answer:

Nell wrote 4 poems.

Step-by-step explanation:

8+2=10

10-6=4

4= Number of poems that Nell wrote

"the difference between five more than the larger number and twice the smaller number' can be written as the expression 31 -3x.

Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation.

Given, the sum of two numbers is twenty-six the difference between five is more than the larger number and twice the smaller number' into a variable expression.

Since x represents the smaller of the two numbers,

Thus the larger number will be 26 - x

The expression asked above will be:

=> 5 + larger number - 2 * smaller number

=> 5 + 26 - x - 2 * x

=> 31 -3x

therefore,  "the difference between five more than the larger number and twice the smaller number' can be written as the expression 31 -3x.

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