The area of a rectangle is 325 cm^2. What is the area of a rectangle in cm^2 with
sides 3 times as large?
i’m stuck, pls help

The Area Of A Rectangle Is 325 Cm^2. What Is The Area Of A Rectangle In Cm^2 Withsides 3 Times As Large?im

Answers

Answer 1

Answer:

2926 cm²

Step-by-step explanation:

The area of a rectangle is 325 cm^2. What is the area of a rectangle in cm^2 with sides 3 times as large?

Step 1

A rectangle has both Length and Width

Let us assume the Length = Width

The area of a rectangle is 325 cm²

Area = Length × Width

325 cm² = L²

L = √325 cm²

L = 18.027756377 cm

Approximately = 18.03 cm = Widtdh

Step 2

What is the area of a rectangle in cm² with sides 3 times as large?

From Step 1

L = 18.03cm

3 times as large = 18.03 cm × 3

= 54.09 cm

The Area for this rectangle

= A = L²

A =( 54.09 cm)²

A= 2925.7281 cm²

Approximately = 2926 cm²


Related Questions

What is the arithmetic mean of the data set 4 5 10 8 and 3?

Answers

Arithmetic mean of the data set 4,5,0,10,8and 3  is '5'

What Is the Arithmetic Mean?

The easiest and most popular way to calculate a mean or average is with simple mathematics. It simply entails adding up a collection of numbers, dividing that total by the number of numbers in the series, and adding the result together.

given data set is -

4 , 5 , 0 , 10 , 8 and 3

number of observations in given data set are '6'

arithmetic mean ( AM ) formula is

AM = (sum of all observations in given data set) / (total number of observations)

sum of all observations in given data set = 4 + 5 + 0 + 10 + 8 + 3

= 30

AM = 30 / 6 = 5

arithmetic mean of the data set 4,5,0,10,8and 3  is '5'

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What is y 3x 1 in standard form?

Answers

The standard form of the linear equation can be written as -3x + y = 1

What means standard form?

Standard form defines the method of expressing any mathematical concept such as expression, terms, equation or numbers in a systematic form by following a certain rule.

What is standard form of an equation?

The system of writing an equation that follows particular rules is termed as standard form of equation.

The standard form of a linear equation with two variables x and y can be written as Ax + By = C

where, A and B are coefficient of x and y respectively, C is the constant.

This form of equation is required to solve linear equation.

The above equation is written in the slope intercept form, and we get

By = -Ax+C

y = -A/Bx+C/B

where, -A/B is the slope of equation, C/B is the y intercept

Now we have a linear equation written in the slope intercept form

y-3x-1 = 0

y= 3x+1

3 is the slope, 1 is the y intercept

now, we can write it in a standard form and get,

-3x+y = 1

hence, standard form of equation is -3x + y = 1

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two parallel lines are crossed by a transversal. What is the value of m? m=68 m=78 m=102 m=112 .

Answers

Answer:

m=102

Step-by-step explanation:

You forgot to attach an image of the lines, but I have it here, so no worries

We know that two parallel lines are crossed by a transversal. m are consecutive interior angles. We know that they add up to 180 degrees.

So, our equation is

78 + m = 180

m = 102

How do you write an equation in slope intercept form with one point and slope?

Answers

The equation of line passing through point (-1,0) and slope 4 in slope intercept is  y = 4x + 4   .

The Slope Intercept form of the line is denoted as " y = mx + c " , c in y intercept and m is slope .

the slope of the line is given to be = 4 ;

and the line passes through the point (-1,0) ,

which can be represented as : 0 = (-1)(4) + c ,

0 = -4 + c .

On simplifying further ,

we get ;

c = 4 .

Substituting the values , we get equation as ⇒ y = 4x + 4 .

Therefore , the equation of line is y = 4x + 4  .

The given question is incomplete , the complete question is

How do you write an equation in slope intercept form with one point and slope ? the point is (-1,0) and slope is 4 .

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What is the median of 2 and 6?

Answers

The Median of 2 and 6 will be 4.

What is the Median?

The Median is a midpoint value in an ordered set of numbers, the median is a detailed descriptive statistic that distinguishes between the more significant and lesser halves of the group. The median value for a continuous probability distribution is one where a number has an equal chance of falling above or above it.

How to calculate the Median?

First, sort the numbers in the collection from lowest to highest in order to obtain the median (highest to lowest works just as well). Second, ascertain whether the set's elements are an odd or an even number. Third, there is always a middle point if the number of data points is odd; for example, in the set 1, 2, 3, 4, 5, it is 3. The median is the arithmetic mean of the two points closest to the midpoint in sets with an even number of members. For instance, in the set 1, 2, 3, 4, the median is between 2 and 3, therefore (2 + 3) / 2 = 2.5.

In our question two numbers are given 2 and 6, so the median must be between 2 and 6.

Using our concept, the median of this problem will be (2+6)/2= 4.

So, our final answer will be 4.

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What is the image of (-8,-12) after dilation by scale factor of 1/4 centered at the orgin

Answers

Answer:

(- 2, - 3 )

Step-by-step explanation:

since the dilatation is centred at the origin, then multiply the coordinates by the scale factor.

(- 8, - 12 ) → ([tex]\frac{1}{4}[/tex] (- 8), [tex]\frac{1}{4}[/tex] (- 12) ) → (- 2, - 3 )

7. the owner of the west end kwick fill gas station wishes to determine the proportion of customers who use a credit card or debit card to pay at the pump. he surveys 100 customers and finds that 80 paid at the pump. (a) calculate the sample proportion. what is the value of the population proportion? (b) develop a 95 percent confidence interval for the population proportion. (c) interpret your findings.

Answers

Therefore , the solution to this problem is confidence interval 95% is given by Z =1.96.

Confidence Interval: What is it?

In frequentist statistics, a confidence interval is the range of estimates for an unknown quantity. 95% is the most frequent confidence level used when calculating confidence intervals, however 90% and 99% are also occasionally used.

a)85 out of 100 paid at the pump using credit card

Thus,

p = proportion of customers who paid at the pump using credit card

  = 85/100

  = 0.850

Estimated Value of the population proportion = 0.850

b)

Given:

p' = 0.85           ....... Sample Proportion

n = 100           ....... Sample Size

For 95% Confidence interval

α = 0.05,      α/2 = 0.025

From z tables of Excel function

Z = [tex]\frac{p'-p}{\sqrt{p(1-p)/n} }[/tex]

we find the z value

z = (0.025) = 1.96

We take the positive value of z

Therefore , the solution to this problem is confidence interval 95% is given by Z =1.96.

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How many terms are there in the expression 5xy² 35xy²?

Answers

There are two terms in the given expression 5xy²+ 35xy².

What is meant by term?

Terms comprise expressions. A term may be a constant, a variable, or a combination of variables and constants.

What is an example of a term?

It could be a single variable (a letter), a single number (positive or negative), or a number of variables multiplied but never added or subtracted. Variables in certain words have a number in front of them. A coefficient is the number used before a phrase. Single-word examples: A single phrase is 3x.

There are two terms in the equation 5xyA ^2 + 35xyA^2 that is separated by an arithmetic operator +.

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What is another name for linear function?

Answers

The slope-intercept form is the common representation of a linear function.

What are some instances of a linear function?

A straight line on the coordinate plane is represented by a linear function. As an illustration, the equation y = 3x – 2 depicts a linear function since it is a straight line in the coordinate plane. This function may be written as f(x) = 3x - 2 since y can be substituted with f(x).

How can you know from an equation if a function is linear or nonlinear?

A mathematical equation must take the form y=mx+b in order to be classified as a linear function (in which m is the slope and b is the y-intercept). This form cannot be satisfied by a nonlinear function. The variables in a linear equation are appear in first degree only and terms containing products of variables are absent.

This equation generates a straight line because the power of x is always one demonstrating that there is only one x variable. As long as the exponent of x is one, the graph is a straight line. Any other values will yield nonlinear curves.

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The procedure and the answer, Pleaseeeee

Answers

Answer:

looooookkkkkk at the picture

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. What is the equation of y = 2° with the given transformations? vertical compression by a factor of 1 7, horizontal shift 8 units to the left, reflection across the x-axis

Answers

The transformation of the function is y = -1/7(2ˣ ⁺ ⁸)

How to determine the transformation of the function?

From the question, we have the following parameters that can be used in our computation:

y = 2°

Rewrite properly

So, we have

y = 2ˣ

The given transformations are

vertical compression by a factor of 1/7Horizontal shift 8 units to the leftReflection across the x-axis

The riles of these transformations are

vertical compression by a factor of 1/7: 1/7f(x)Horizontal shift 8 units to the left: (x + 8, y)Reflection across the x-axis: (x, -y)

When they applied, we have

y = 1/7(2ˣ)

Then,  we have

y = 1/7(2ˣ ⁺ ⁸)

Lastly, we have

y = -1/7(2ˣ ⁺ ⁸)

Hence, the transformed equation is y = -1/7(2ˣ ⁺ ⁸)

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Maxime refait la tapisserie de son salon.

Il pose quatre quinzième du papier le premier jour,deux cinquième le deuxième jour et un sixième le troisième jour :a- il -fini?

Answers

Answer:

Step-by-step explanation:

Il est difficile de dire si Maxime a fini de refaire la tapisserie de son salon sans plus de contexte. Pour savoir s'il a fini, il faut connaître la surface totale de la tapisserie et combien de papier il a utilisé en tout. Si la surface de la tapisserie est suffisamment grande et que Maxime n'a pas utilisé assez de papier, il n'a pas fini. S'il a utilisé plus de papier que nécessaire, il a peut-être fini, mais il est possible qu'il ait fait des erreurs ou qu'il ait dû recommencer certains morceaux.

Pour savoir combien de papier Maxime a utilisé en tout, il faut ajouter les quantités de papier qu'il a utilisé chaque jour. Quatre quinzième représentent 4/15 de la surface totale de la tapisserie, deux cinquième représentent 2/5 de la surface totale de la tapisserie et un sixième représentent 1/6 de la surface totale de la tapisserie. Si vous ajoutez ces quantités, vous obtiendrez la quantité totale de papier utilisée par Maxime. Ensuite, vous pouvez comparer cette quantité à la surface totale de la tapisserie pour savoir s'il a fini ou non.

How do you find the inverse of a 3x3 matrix?

Answers

The inverse of a 3x3 matrix is found by creating an Adjugate Matrix.

How do you find the inverse of a 3x3 matrix?

Step 1 : For any matrix M find the adjoint matrix.

Finding the transpose of the cofactor matrix of a matrix M yields the adjoint of that matrix. Any 3x3 matrix element's cofactor is the determinant of the 2x2 matrix that results from deleting the element's row and column. While determining the cofactors, alternate + and - signs are also written.For example :

        [tex]\text{Let a matrix }M= \left[\begin{array}{ccc}1&2&3\\0&1&4\\5&6&0\end{array}\right][/tex]

                         [tex]M^{T}= \left[\begin{array}{ccc}1&0&5\\2&1&6\\3&4&0\end{array}\right][/tex]

                       Adj M = [tex]\left[\begin{array}{ccc}-24&18&5\\20&-15&-4\\-5&4&1\end{array}\right][/tex]

Step 2 :Find Determinant of a 3x3 Matrix

Find the sum of the product of the components of any row/column and their respective cofactors to determine the determinant of a 3x3 matrix.For example:

         [tex]M= \left[\begin{array}{ccc}1&2&3\\0&1&4\\5&6&0\end{array}\right][/tex]

       det (M)= 1 (0- 24 ) - 2 (0 - 20 )+3 (0- 5 )

                  = - 24 + 40 -15

                  = 40 - 39

                  = 1

         

Step 3 : Find inverse matrix [tex]M^{-1}[/tex]

M determinant can be  calculated in the first step to check that the inverse was possible. Now multiply each term in the matrix by that number. In each computation, replace the original term with the results. The outcome is the opposite of the initial matrix.

          [tex]M^{-1 } = \frac{1}{det (M)} (Adj M)[/tex]

For example :        

          [tex]M^{-1 } = \frac{1}{det (M)} (Adj M)\\\\M^{-1 } = \frac{1}{1}\left[\begin{array}{ccc}-24&18&5\\20&-15&-4\\-5&4&1\end{array}\right]\\\\M^{-1 }=\left[\begin{array}{ccc}-24&18&5\\20&-15&-4\\-5&4&1\end{array}\right][/tex]

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Estimate
32.3 divided
5.6

Answers

32.3 divided 5.6 is 0.173

What is an estimation number?

Estimation of numbers is the process of estimating/approximating or rounding off the numbers in which the value is used for some other purpose in order to avoid complicated calculations.

Change the divisor 32.3 to a whole number by moving the decimal point 1 places to the right.

Then move the decimal point in the dividend the same, 1 places to the right.

Now we have the equations:

56 ÷ 323 = 0.173

and therefore:

5.6 ÷ 32.3 = 0.173

Both calculated to 3 decimal places.

32.3 divided 5.6 is 0.173

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What are the 5 types of line graphs?

Answers

There are 5 types of line graphs:

1) Simple line graph                                 2) Compound Line Graph

3) Multiple Line Graph                             4)Vertical Line Graph

5) Horizontal Line Graph                         6) Straight Line Graph

1) Simple Line Graph:

A simple line chart is the most basic type of line chart. Only one dependent variable is tracked in this chart, so there is only one line connecting all the data points on the chart. All points in the chart relate to the same element and the sole purpose of the chart is to track changes in these variables over time. Only variables are graphed, so this graph cannot be used to compare one variable to another.

2) Multiple Line Graph:

In a multiple line chart, multiple dependent variables are plotted on a chart and compared against a single independent variable (often time). Different dependent variables are often marked with different colored lines to distinguish each data set. Each row relates only to points in the specified dataset. Lines do not cross between dependent variables.

3) Compound Line Graph:

If information can be subdivided into two or more types of data. This type of line graph is called a compound line graph.  Composite line charts, like multiline charts, use multiple variables. However, variables are often stacked on top of each other to show the sum of all variables. This informs the user not only of the relationship between each variable, but also of how the total is changing.

4) Vertical Line Graph:

A vertical line chart is a chart in which a vertical line extends from each data point to the horizontal axis. A vertical line chart is sometimes called a column chart. A line parallel to the y-axis is called a vertical line.

5) Horizontal Line Graph:

A horizontal line chart is a chart with a horizontal line running parallel to the globe at each data point. Horizontal line charts are sometimes called line charts.

6) Straight Line Graph:

A line parallel to the X axis is called a vertical line. Line charts are often used to solve conditions that change over specific time intervals. The general linear function has the form y = mx + c, where m and c are constants.

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What is the equation of the line through the points (3, 2), (8, 5), (13, 8) and (18, 11)?.

Answers

Answer:

[tex]y=\frac{3}{5}x+\frac{1}{5}[/tex]

Step-by-step explanation:

Using the points [tex](3,2)[/tex] and [tex](8,5)[/tex],

[tex]m=\frac{5-2}{8-3}=\frac{3}{5} \\ \\ y-2=\frac{3}{5}(x-3) \\ \\ y-2=\frac{3}{5}x-\frac{9}{5} \\ \\ y=\frac{3}{5}x+\frac{1}{5}[/tex]

What is (2x^2+6x−3) added
to (2x^3 −3x+2)?

Answers

To add the two expressions (2x^2+6x−3) and (2x^3 −3x+2), we need to combine like terms. Like terms are terms that have the same variable and exponent.

The two expressions have no like terms, so we can simply add them as follows:

(2x^2+6x−3) + (2x^3 −3x+2) = 2x^2 + 6x − 3 + 2x^3 − 3x + 2

= 2x^2 + 2x^3 + 6x − 3x − 3 + 2

= 2x^2 + 2x^3 + 3x − 3 + 2

= 2x^2 + 2x^3 + 3x − 1

The resulting expression is (2x^2 + 2x^3 + 3x − 1).

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Given equations: 2x^2+6x-3+2x^3-3x+2

                             = 2x^2+2x^3+6x-3x-3+2

                             =2x^3+2x^2+3x-1

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Jim invests $5,000 in an account that pays 2.5% annual interest, compounded semi-annually. What is his balance, to the nearest cent, at the end of 5 years?

Answers

The balance after 5 years would be near around 5661 dollars.

What is compound interest?

Compound interest is the addition of interest to the principal sum of a loan or deposit, or in other words, interest on principal plus interest.

According to the given question:

First, convert R as a percent to r as a decimal

r = R/100

r = 2.5/100

r = 0.025 rate per year,

Then solve the equation for A

A = P(1 + r/n)ⁿˣ

A = 5000(1 + 0.025/2)²ˣ⁵

A = 5661.35

Hence the balance after 5 years would be near around 5661 dollars.

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what is the answer of this?

Answers

Answer:

x = 43.25

Step-by-step explanation:

(x + 2 )+ (x + 2) + (2x + 3) = 180(total angles in a triangle)

x + 2 + x + 2 + 2x + 3 = 180

x + x + 2x + 2 + 2 + 3 = 180

4x + 7= 180

4x = 180 – 7

4x = 173

divide both sides by (4)

[tex] \frac{4x}{4} = \frac{173}{4} [/tex]

x = 43.25

i hope this helps

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Answers

Answer: bro this ez 1.5 for the first one second should be 22 correct me if im wrong.

Step-by-step explanation:

what is the slope of the line that passes through (4,7) and has a y-intercept of 1?

Answers

Answer:

[tex]m=\frac{3}{2}[/tex]

Step-by-step explanation:

The x value of the y-intercept must be 0, so let

[tex](x_1,y_1)=(0,1)[/tex]

and

[tex](x_2,y_2)=(4,7)[/tex]

The slope of a line can be found with the following:

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

So,

[tex]m=\frac{(7)-(1)}{(4)-(0)}\\m=\frac{6}{4}\\m=\frac{3}{2}[/tex]

Answer each of the following questions and show your reasoning. How many cubes with an edge length of 1 3 3 1 ​ inch are needed to build a cube with an edge length of 1 inch? What is the volume, in cubic inches, of one cube with an edge length of 1 3 3 1 ​ inch?

Answers

The number of cubes of edge length 1/3 is 27 and the volume of the cube is 1 cubic inches

How to determine the number of cubes

From the question, we have the following parameters that can be used in our computation:

Edge length of cube 1 = 1/3 inchEdge length of cube 2 = 1 inch

The volume of a cube is the cube of its edge length

This means that the volumes are

Volume = Edge length³

So, we have

Volume of cube 1 = (1/3 inch)³ = 1/27 cubic inches

Volume of cube 2 = (1 inch)³ = 1 cubic inch

The number of cubes is then calculated as

Number of cubes = Volume of cube 2/Volume of cube 1

This gives

Number of cubes = 1/(1/27)

Number of cubes = 27

The volume of the cubes

Here, we have

Edge length of cube = 1 inch

The volume of a cube is the cube of its edge length

This means that the volumes are

Volume = Edge length³

So, we have

Volume of cube = (1 inch)³ = 1 cubic inch

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How do I add a number to an existing cell in Excel?

Answers

On the Formula tab, click AutoSum > Sum. Excel will automatically sense the range to be summed.

Now, According to the question:

How do I add value to an existing cell in Excel?

One quick and easy way to add values in Excel is to use AutoSum. Just select an empty cell directly below a column of data. Then on the Formula tab, click AutoSum > Sum. Excel will automatically sense the range to be summed.

How do I add a digit to an existing number in Excel?

Say you have 50 in the cell in question, and want to add 30 to it. Then the clever part: Right-click on the cell with 50 in it, and select Paste Special. In the box that comes up, select 'Add'.

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[tex] \sqrt{484} [/tex]
some one tell me answer with method.​

Answers

Answer:

22

Step-by-step explanation:

I factor out the radicand and get 22

Let's test if my answer is correct!

22 times 22 = 484

So, my answer is correct!

The answer is 22! 22 x 22 is 484

Calculate your pulse rate of your heart beats in 170 times in 2.5 minutes

Answers

The heart beats normally between 60 and 100 times per minute while at rest. Your heart beats far more quickly than usual if you have ventricular tachycardia, with many individuals reporting heart rates of 170 or more per minute.

What Is a heart rate of 170 normal during exercise?Your goal heart rate for moderate-intensity exercise should range between 64% to 76%1,2 of your maximum heart rate. Based on your age, you may determine your maximum heart rate. Subtract your age from 220 to determine your maximal age-related heart rate. For a 50-year-old, for instance, the predicted maximum age-related heart rate would be computed as 220 - 50 years = 170 beats per minute (bpm). The 64% and 76% levels would be:

64% level: 170 x 0.64 = 109 bpm, and 76% level: 170 x 0.76 = 129 bpm

This demonstrates that a 50-year-old must maintain a heart rate between 109 and 129 bpm when engaging in moderate-intensity exercise.Your target heart rate for vigorous physical activity should range from 77% to 93%1,2 of your maximum heart rate. Use the same procedure as above to determine this range, replacing "64 and 76%" with "77 and 93%". For a 35-year-old, for instance, the predicted maximum age-related heart rate would be computed as 220 - 35 years = 185 beats per minute (bpm). The 77% and 93% levels would be:

77% level: 185 x 0.77 = 142 bpm, and 93% level: 185 x 0.93 = 172 bpm

This indicates that a 35-year-heart old's rate must stay between 142 and 172 bpm while engaging in vigorous-intensity exercise.

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given that n is an integer greater than 1, explain why the largest prime factor of 2(7^n) - 2(7^(n-1)) + 7^(n+1) is 61.

Answers

When we put the value of 1 in place of n in the equation, the value obtained will be equal to the largest prime factor that is 61.

What is a Prime number?

A prime number is any whole number that is greater than 1 and cannot be created by combining other whole numbers. Consequently, a prime number's only factors are 1 and the actual number.

As per the given expression in the question,

2(7ⁿ) - 2(7ⁿ⁻¹) + 7ⁿ⁺¹

Use exponent rule:

[tex]a^b.a^c=a^b^+^c[/tex]

Put the values accordingly,

2(7ⁿ) - 2(7ⁿ⁻¹) + 7ⁿ . 7¹

So,

[tex]\frac{a^b}{a^c}= a^b^-^c[/tex]

⇒ 2(7ⁿ) - 2(7ⁿ/7¹) +  7ⁿ . 7¹

Simplify the above equation,

2(7ⁿ) - 2/7(7ⁿ) + (7)7ⁿ

Take out 7ⁿ as common,

(2 - 2/7 + 7)7ⁿ

Therefore,

61/7(7ⁿ)

Put n = 1 to check for the largest prime number,

61/7(7¹)

= 61

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What is the coefficient of x³y² in the expansion of (2x+y)5?
O A 2
OB. 5
OC. 40
OD. 80
OE. It does not exist.
SUBMI

Answers

The coefficient of x³y² in the expansion of (2x+y)5 is 80.

What is the coefficient in expansion?A material's rate of expansion as a function of temperature is known as its coefficient of thermal expansion (CTE). More specifically, this coefficient is calculated under constant pressure and without a change in the material's phase, i.e., it is anticipated that the substance will continue be in either its solid or liquid state.Rather of comparing several units, it is employed to ascertain the range of values inside a single data set. The co-efficient of variation is employed when we wish to compare two or more data sets. The CV is calculated as the standard deviation to mean ratio.(x+y)n = xn + nxn-1y + n(n1)2 is the formula for the binomial expansion!

Given data :

The coefficients of terms of (p+q)^n can be found by the Pascal's triangle for small values of n.  Pascal's triangle will start with (1,1)  = coefficients of (p,q)^n =1.  For n=2, we add successive terms of the previous value of n.  Thus for n-2, we have (, 1+1,11=(1,2,1), for n=3, we have (1,3,3,1), giving the following pattern:

(1,1)

(1,2,1)

(1,3,3,1)

(1,4,6,4,1)

(1,5,10,10,5,1)

meaning for n=5, the binomial expansion for (P+Q)^5 is

P^5+5P^4Q+10P^3Q^2+10P^2Q^3+5PQ^4+Q^5

Setting P=2x, Q=y in the term 10P^3Q^2, we get a term

10(2x)^3(y)^2

=10(8x^3)(y^2)

=80x^3y^2

So the required coefficient is K=80.

We can also find the coefficient 10 by binomial expansion of

n=5, x=3 in

C(n,x) = n! / (x! (n-x)!) = 5! / (2!3!) = 5*4*3/(1*2*3) = 10

Then again substituting 10(2x)^3(y)^2 = 80x^3y^2

to get the coefficient K=80.

Learn more about coefficient in expansion refer to :

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Determine the domain of the following graph:

Answers

The domain is [-5, 3]

This is because the function has two defined points, hence why the points are solid rather than open. The domain is the list of all x values that satisfy the function, which can be though of as how far left or right the function goes. We use brackets to indicate the points are defined, as parenthesis mean to not include the points.

How do you find the mean of 4 numbers?

Answers

How do you find the mean of 4 numbers?

Finding the mean, refers to finding the average. To do this, add the four numbers together and then divide that number by 4.

A toilet paper roll is 16cm tall with a radius of 6cm. The inside cylinder is a hole. It has a diameter of 3cm. What is the surface area of the toilet paper roll?

Answers

The total surface area of the cylinder is 10635 cm-square

Given, the length of the toilet paper roll = 16 cm

The radius of the toilet paper roll = 6cm

The diameter of the inside roll = 3cm

So, the radius of inside cylinder = diameter/2 = 3/2 = 1.5 cm

We know that the formula for :

The total surface area of a cylinder = 2πrh (h+r)

Here, h = 16 cm

r1 = 6cm and r2 = 1.5 cm

Since there are two cylinders one cylinder inside another so here total surface area will be equal to :

2πr1h (h+r1) - 2πr2h (h+r2)

On calculating, Total surface area = 10635 cm-square

To know more about cylinder follow the given link :

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