The area of a circle is 9π in². What is the circumference, in inches? Express your answer in terms of \piπ

Answers

Answer 1

Answer:

[tex]6\pi[/tex] in

Step-by-step explanation:

The formula to find the area of a circle: [tex]\pi r^{2}[/tex], where [tex]r[/tex] is the radius.

The formula to find the circumference (perimeter) of a circle: [tex]2\pi r[/tex], where [tex]r[/tex] is the radius.

1) To find the circumference of the circle, we need to find the radius ([tex]r[/tex]) first. Since the area of the circle is given to us, we need to equate this to the formula to find the area of a circle.

[tex]9\pi =\pi r^2[/tex]

Cancel the [tex]\pi[/tex] by bringing it to the other side.

[tex]9 =\pi r^2[/tex] ÷ [tex]\pi[/tex]

[tex]9 = r^2\\\sqrt{9} = r\\3 = r[/tex]

2) Find the circumference of the circle by using the formula, [tex]2\pi r[/tex].

=  [tex]2*\pi *3[/tex]

= [tex]6\pi[/tex] in


Related Questions

please help and explain

Answers

Answer:

Step-by-step explanation:

Remark

These two angles are related by the supplement of corresponding angles. So they add to 180.

Equation

<1 + <2 = 180

2x + 4 + 8x - 14 = 180

Givens

<1 = 2x + 4

<2 = 8x - 14

Solution

<1 + <2 = 180                Substitute the givens into this equation

2x + 4 + 8x - 14 = 180  Combine like terms

2x + 8x + 4 - 14 = 180  

10x - 10 = 180               Add 10 to both sides

10x-10+10 = 180+10     Combine

10x = 190                      Divide by 10

10x/10 = 190/10

x = 19

Answer: x = 19

the annual tuition and parent rating of 12 private schools is shown in the scatterplot the schools are waiting on a scale of 0 to 100.

Part A: describe the association shown in scatterplot
Part B: give an example of a data points that affects the appropriateness of using a linear regression model to fit all the data. Explain
Part C: give an example of a school that is cost-effective and rated highly by parents

Answers

There is no association in scatter plot of the annual tuition and parent rating of the 12 private schools

Part A: The association shown in scatter plot

We can see that the points on the scatter plot are scattered, and they do not follow a specific pattern.

This means that there is no association in scatter plot

Part B: A data points that affects the appropriateness of using a linear regression model

A point that would affect the appropriateness is a point that is relatively far from other data points i.e. an outlier

An example of this point is the point between x = 8000 and 10000 and y = 0 and 10

Part C: A school that is cost-effective and rated highly by parents

This school would have a high rating and a medium or not so high cost

From the scatter plot, an example of a school that has this feature have a tuition close to $6000 and rating close to 90

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8x10^-3 is how many times as great as 4x10^-6

Answers

The value [tex]8\times 10^{-3}[/tex] is about 2000 times greatest as [tex]4\times 10^{-6}[/tex]

What are exponent values?

Exponents, also known as powers, are values that show how many times to multiply a base number by itself.

Here we have the values  [tex]8\times 10^{-3}[/tex] and [tex]4\times 10^{-6}[/tex]

Now to compare the value we will write [tex]4\times 10^{-6}[/tex] as [tex]0.004\times 10^{-3}[/tex]. We will divide the value  [tex]8\times 10^{-3}[/tex] by the value [tex]4\times 10^{-6}[/tex]  So it will give us 2000.That means that the value [tex]8\times 10^{-3}[/tex] is 2000 times them the value [tex]4\times 10^{-6}[/tex]

[tex]\dfrac{8\times 10^{-3}}{0.004\times 10^{-3}}=2000[/tex]

So value [tex]8\times 10^{-3}[/tex] is about 2000 times greatest as [tex]4\times 10^{-6}[/tex]

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This is easy I think pls help

Answers

solve the equation:-

[tex] - 7n + m[/tex]

[tex] m = - 1.2 \\ n = - 4.8[/tex]

Putting the value:-

[tex] - 7( - 4.8) + ( - 1.2) \\ - 33.6 - 1.2 \\ - 34.8[/tex]

There are 12 players on a baseball team. In how many different ways can the coach choose players for left field, right field, and center field?
A) 36
B) 220
C) 1320
D) 1728

Answers

The answer to your question is C) 1320

A company sells widgets. The amount of profit, y, made by the company, is related to the selling price of each widget, x, by the given equation. Using this equation, find out the maximum amount of profit the company can make, to the nearest dollar. y= -6x^2 + 600x - 5726

Answers

The maximum amount of profit the company can make is 9274

What is  differentiation?

Differentiation is the rate of change of one quantity with respect to the other.

It is the ratio of the change in one quantity, usually the dependent quantity to the change in another related quantity, usually the independent quantity.

Analysis:

y= -6x^2 + 600x - 5726

differentiating the equation,

dy/dx = -12x + 600

for maximum selling price, dy/dx = 0

-12x + 600 = 0

12x = 600

x = 50

The maximum selling price is 50, so substituting x to find y

y = -6(50)(50) + 600(50) - 5726 = 9274

In conclusion, the maximum amount of profit the company can make is 9274.

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11 Dani wants to buy cookies for her friend. The radius of a cookle is 5 Inches. What is the cookie's circumference? Round to the nearest tenth​

Answers

Answer:

Around 31.4

Step-by-step explanation:

The circumference formula of a circle is C=2[tex]\pi[/tex]r. Plug the radius in which is 5. 5 times 2 is 10. 10 times pi would be around 31.4

Which measurements of two similar triangles are the same?
A
the angles

B
the angles and legs

C
the lengths of all legs

D
the length of the hypotenuses

Answers

Answer:

A) the angles

Step-by-step explanation:

Similar triangles are triangles that have the same shape but different sizes.

Angles

Since similar triangles have the same shape, all of the angles must be congruent. If any of the angles are different sizes, then the shape of the entire triangle would change.

Sides

The sides of a similar triangle are not necessarily congruent. However, because all of the angles are congruent, the sides are proportionate. This means that if you are given the sides and angles of one triangle, you can find the sides and angles of any similar triangle.

A signal from a satellite in space travels to the surface of the Earth at the speed of light. The distance between the satellite and the surface of the Earth is 30,425 kilometers. How long does it take for the signal to reach the surface of the Earth, to the nearest thousandth of a second? (Note: Use 3.0 x 10 meters/second for the speed of light. 1 kilometer = 1,000 meters)​

Answers

Answer:

0.101

Step-by-step explanation:

[tex]speed = \frac{distance}{time} [/tex]

We have speed, and we have distance. So let's rearrange to get time:

[tex]time = \frac{distance}{speed} [/tex]

Let's plug in our numbers (make sure to times distance by 1000 to convert to metres):

[tex]time = \frac{30425000}{3.0 \times {10}^{8} } [/tex]

Which leaves us with:

[tex]time = \frac{1217}{2 ^ {5} \cdot 3 \cdot 5 ^ {3}} \approx 0.101416667[/tex]

Can someone please help?? This is sooooo hard!!!

Answers

Answer:

Step-by-step explanation:

1) [tex]\overline{AC}[/tex] bisects [tex]\overline{BD}[/tex] and [tex]\overline{BC} \parallel \overline{AD}[/tex] (given)

2) [tex]\overline{AE} \cong \overline{EC}[/tex] (a bisector splits a segment into two congruent parts)

3) [tex]\angle BCE \cong \angle EAD[/tex] (if two parallel lines are cut by a transversal, the alternate interior angles are congruent)

4) [tex]\angle CBE \cong \angle EDA[/tex] (if two parallel lines are cut by a transversal, the alternate interior angles are congruent)

5) [tex]\triangle BEC \cong \triangle DEA[/tex] (AAS)

round to the nearest hundreth

Answers

is it asking for area? perimeter?

Help is much appreciated :)

Answers

Answer:

Your answer is B

y < x

y ≥ -x

Step-by-step explanation:

6.14 Checkpoint: Systems of Linear Inequalities

I took the test.

Answer:

B is correct because I too took the test.

6.14 Checkpoint: Systems of Linear Inequalities

Step-by-step explanation:

You're welcome.

How many ways can you fold the square so one half? How many ways an you fold the letter G one half fits exactly on top of the other half?

Answers

There are four ways to fold the square into half and the number of ways to fold the letter G is 0

Folding a square?

A square has 4 lines of symmetry.

Each line of symmetry divides the square into half

This means that the square can be folded in any of its line of symmetry to get one half

Hence, there are four ways to fold the square into half

Folding the letter G

The letter G has no line of symmetry.

This means that the letter cannot be folded so that the halves fit perfectly

Hence, the number of ways to fold the letter G is 0

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what is greater 42.9 or 42.900 ANSWER PLSSSS

Answers

they are the same , hope this helps :)
they are the same just because there are zeros behind that 9 doesnt make it greater than or less than the zeros are just okace holders

Español Use the equation below to find y, if m=4, x=8, and b=12. y=mx-b​

Answers

Answer

[tex]y=4* 8 -12\\[/tex]

Step-by-step explanation:

4 x 8 = 32

y=32-12

y=20

Find the radius of a circle in which the central angle, o, intercepts an arc of the given length s.
a= 90° s = 57m. Round final answer to nearest tenth.

Answers

I need to see the question

Rewrite in simplest radical form 1 over the quantity x to the negative three sixths end quantity. show each step of your process.

Answers

Applying the property of exponents, the simplest radical form of [tex]\frac{1}{x^{-\frac{3}{6} }}[/tex] is: [tex]\sqrt{x}[/tex].

What is the Property of Exponents?

The property of exponents that can be used to solve this problem are:

[tex]a^{-m} = \frac{1}{a^m} \\\\ a^{\frac{1}{2} } = \sqrt{a}[/tex]

Given the expression, [tex]\frac{1}{x^{-\frac{3}{6} }}[/tex], applying the property of exponents, we would simplify the expression as shown below:

[tex]\frac{1}{x^{-\frac{3}{6} }} = x^{\frac{3}{6} }[/tex]

Reduce the fraction

[tex]= x^{\frac{1}{2} }\\\\ = \sqrt{x}[/tex]

Therefore, [tex]\frac{1}{x^{-\frac{3}{6} }} = \sqrt{x}[/tex]

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5y-2x=-3/-4y+x=12 Can someone help me with this system of equation.

Answers

[tex]-2x+5y +3=0~~~~~~.....(i)\\\\x-4y -12=0~~~~~~,,,,(ii)\\\\\\~~~~~~~~\dfrac{x}{5(-12)-3(-4)} = \dfrac{y}{3\cdot 1 -(-2)(-12)}=\dfrac{1}{(-2)(-4)-5\cdot 1} \\\\\\\implies \dfrac{x}{-60+12}= \dfrac{y}{3-24} = \dfrac1{8-5}\\\\\\\implies -\dfrac{x}{48}=-\dfrac y{21} = \dfrac 1{3}\\\\\\\implies x = -\dfrac{48}{3},~~~ y = -\dfrac{21}{3}\\\\\\\implies x = -16, ~~~~ y = -7[/tex]

Stephanie spent $96 on trash cans, if each trash can was $24. How many trash cans did she get

Answers

Stephanie got 4 trash cans

anyone knows the answer?! ​

Answers

Answer:

Domain: All real numbers

Range: y≤5

Step-by-step explanation:

Domain: All real numbers (it can be all x values)

Range: y≤5  (the y values can be 5 or less.)

How many square feet of glass is used to create the window

Answers

Answer:108

mark me brainliest

Step-by-step explanation:8 pieces of glass uses 1 sqft. glass window. 864 sqin. required = = 108 pieces. Number of pieces required for 864 sq.inches = 108 pieces.

Find the Total Surface area of this triangular prism?

Answers

Answer:

Im pretty sure its 144 cm

Step-by-step explanation:

pls answer this question

Answers

The number of zeros of the given Polynomial which are α, β and γ are; A:3

How to find the zeros of a Polynomial?

We are given the Polynomial;

x³ - 8x² + 4x - 4 = 0

From online polynomial root calculator, to roots of the Polynomial are;

7.54, 0.23, 0.23.

α = 7.54

β = 0.23

γ = 0.23

Thus, we see that there are three roots of the Polynomial. although the latter 2 are imaginary roots.

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Solve the system of the linear equations with three variables:
6x + 4y + z = 12
6x + 4y + 2z = 12
6x + 4y + 3z = 12

Answers

Answer:

z = 0

y = -3x/2 + 3

Step-by-step explanation:

6x + 4y + z = 12

6x + 4y + 2z = 12

6x + 4y + 3z = 12

Second equation minus first equation:

z = 0

If you plug in z = 0 in all the original equations, you get a single equation:

3x + 2y = 6

The best you can do is to solve for y in terms of x.

y = -3x/2 + 3

Answer:

z = 0

y = -3x/2 + 3

i need help pleaseeeeee

Answers

Answer:

answer is X= 175

Step-by-step explanation:

all you had to do is to get rid off both 5 on left which would leave you with x and on right side the answer to 35×5 is 175

Ms. Sutton recorded the word counts and scores of the top ten essays in a timed writing contest. The table shows her data. A 3-row table with 10 columns. The first row is labeled essay rank with entries 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. The second row is labeled essay score with entries 9. 7, 9. 5, 9. 5, 9. 0, 8. 9, 8. 9, 8. 5, 8. 4, 8. 2, 7. 0. The third row is labeled word count with entries 324, 352, 337, 318, 299, 304, 290, 291, 278, 250. How does the word count of an essay relate to its score in the contest? Word count tends to decrease as the score decreases. Word count tends to increase as the score decreases. Word count tends to remain constant as the score decreases. Word count has no apparent relationship to the score of the essay.

Answers

Answer:

D. word count has no apparent relationship to the score of the essay

Step-by-step explanation:

ya its D ANYWAYSSSSSS

Please help me.

I will give you Brainliest, if you answer correctly

Answers

Answer:

9(5x^3-1)

Please Vote Me Brainliest. Thank You.

how many 3 servings are in ounces

Answers

Answer:
depends on the food type! you never said the unit of mass either so..
servings recommended:
Grains: 6 ounces (oz) per day. Serving sizes = ½ cup cooked rice, pasta or cooked cereal; 1 oz. dry pasta or rice; 1 slice bread; 1 cup ready-to-eat cereal flakes.
Vegetables: 2 ½ cups per day. Serving sizes= 1 cup equivalent of vegetables is 1 cup raw vegetable or vegetable juice, 2 cups leafy salad greens.
Fruits: 2 cups per day. Serving sizes =1 cup equivalent is 1 cup fruit or ½ cup of 100% fruit juice (orange juice, etc.) or 1/3 cup of a fruit juice blend.
Protein foods (meat, poultry, fish, dry beans and nuts): 5 ½ oz. per day. Serving sizes = 3 oz. cooked lean meat, poultry or fish; 2 egg whites or 1 egg; ¼ cup cooked beans; 1 tbsp. peanut butter; ½ oz. unsalted nuts/seeds. Note that ¼ cup cooked beans = 1 oz. protein equivalent but ½ cup cooked beans = 1 vegetable.
Fat-free or low-fat dairy foods (milk, yogurt and cheese): 3 cups per day. Serving sizes: 1 cup equivalent is 1 cup milk or yogurt, 1½ oz. natural cheese such as cheddar cheese, or 2 oz. processed cheese.

It depends on the size of the portion and you divide that size by 3 and the result comes out

Which number sequence follows the rule add 4 starting from 2?

Answers

2 6 10 14 18 22 26 30 and so on

help me pleaseee >:)

Answers

Answer:

Cylinder: [tex]V_c = 80 \pi \approx 251.33[/tex]

Rectangular prism: [tex]V_r = 384[/tex]

Total: [tex]V = 80\pi + 384 \approx 635.33[/tex]

Step-by-step explanation:

The volume of the cylinder:

[tex]V_c = \pi r^2 h\\V_c =\pi4^2 \times 5\\V_c = 80\pi\\V_c \approx 251.33[/tex]

The volume of the rectangular prism:

[tex]V_r = lwh\\V_r = 12 \times 8 \times 4\\V_r = 384[/tex]

The total volume:

[tex]V = V_c + V_r\\V = 80\pi + 384\\V \approx 635.33[/tex]

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