Solve the area formula for a circle, A = πr2, for r2.






r2 = Aπ

r2 = A – π

Answers

Answer 1

Answer:

The solution of r² is r² = [tex]\frac{A}{\pi }[/tex]

Step-by-step explanation:

To solve an equation for one of its variables, do that

Separate the term of this variable on one side and the other terms on the other sidesMake the coefficient of the variable equals1 (if it is not 1)

Let us solve the question

∵ The formula of the area of the circle is A = π r²

∵ The subject is r² ⇒ The variable which we need to solve for it

→ By using the 1st step up divide both sides by π to move it from the right

   side to the left side

∵ [tex]\frac{A}{\pi }[/tex] = [tex]\frac{\pi r^{2}}{\pi }[/tex]

∴ [tex]\frac{A}{\pi }[/tex] = r²

→ Switch the two sides

r² = [tex]\frac{A}{\pi }[/tex]


Related Questions

What is the length of AB?
12 units
6
6 units
4
2
14 units
B
-8
-6
-4
-2
0
BX
-2
10 units
4
А
-6-

Answers

Answer:

12

Step-by-step explanation:

i counted 12 units from A to get to B

Answer:

I took the diagnostic and I don't know what it was. I wish they would tell you. But I think 14.

Determine whether the function is linear or nonlinear. Explain
helppppppppp

Answers

Answer:

A linear function follows a constant rate of change Here we see x moves by 4 units and that y decreases by 4 units then suddenly changes to 6 units hence 13 Is Not A functionFor 12, it is a function because it follows a consistent rate of change which is x or one unit of change.

Answer:

12) The function is linear.

13)  This function is not linear.

Step-by-step explanation:

13) A linear functions equation must be in y = mx + b form

When you graph the table there is no y = mx + b equation that makes a line that passes through all the points.

Do the ratios 2/1 and 20/10 from proportion?

Answers

yes !! i believe so :))

Add (-12x+6)+(4x-12)

Answers

Answer:

-8x - 6

Step-by-step explanation:

Combine like terms:  combining -12x + 4x results in -8x, and combining 6 and -12 results in -6.  Thus, we have

(-12x+6)+(4x-12) = -8x - 6

Answer:
-8x - 6

Explanation:
-12x + 4x = -8x
6 - 12 = -6

helpp!!! very easy question

Answers

Answer:

The answer is D, E, F  or it is also D to F

Step-by-step explanation:

9514 1404 393

Answer:

  A and B

Step-by-step explanation:

Speed is the change in distance divided by the change in time. That is, it is the slope of the distance vs. time curve. A steeper slope corresponds to a greater speed.

Between A and B, the slope is (30-0)/(1-0) meters/time-unit = 30 m/u.

Between B and C, the slope is (30-10)/(4-1) = 20/3 = 6 2/3 m/u.

Between C and D, the slope is 0.

Between D and F, the slope is (50-10)/(10-6) = 40/4 = 10 m/u.

The greatest slope is between A and B.

The object has the greatest speed between points A and B.

A wholesale distributor of packaged nuts sells two different mixes of peanuts and cashews, mix A and mix B. Each package of mix A nuts
contains 8 ounces (oz.) of peanuts and 4 oz. of cashews. Each package of mix B nuts contains 6 oz. of peanuts and 6 oz. of cashews. Let x
represent the number of packages of mix A nuts and let y represent the number of packages of mix B nuts. No more than 120 oz. of peanuts
and no more than 96 oz. of cashews can be used each day. Which graph represents the numbers of packages of mix A and mix B that can be
produced?

Answers

Answer:

Cause it is

Step-by-step explanation:

Pls help and show workings
It due ASAP

Answers

Answer:

its SAS

Step-by-step explanation:

As S stand for side A for angle

so side angle side gives SAS

Answer:

Side Angle Side Postulate. The Side Angle Side postulate (often abbreviated as SAS) states that if two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then these two triangles are congruent.

Step-by-step explanation: Perhaps the easiest of the three postulates, Side Side Side Postulate (SSS) says triangles are congruent if three sides of one triangle are congruent to the corresponding sides of the other triangle. This is the only postulate that does not deal with angles.

17.URGENT
Can someone please help me?​

Answers

Answer:

Answer choice D

Step-by-step explanation:

So we need to get r to the right side. First we can multiply by 3 to get rid of the fraction:

3V=4[tex]\pi[/tex][tex]r^{3}[/tex]

Then we can divide both sides by 4[tex]\pi[/tex] to get r by itself:

[tex]\frac{3V}{4\pi } = r^{3}[/tex]

Then cube both sides:

[tex]\sqrt[3]{\frac{3V}{4\pi } } =r\\[/tex]

Answer choice D

how is 1/5 changed to a decimal​

Answers

Answer:

just divide 1/5 by 100 and you should get it

Step-by-step explanation:

A function represented by the equation y=1/3x + 4 is a graph on a coordinate plane. What will happen to the line if the slope is changed to 2/3?

Answers

Answer:

Graph of the new function will be vertically stretched by 2 units.

Step-by-step explanation:

A linear function is represented by the equation, y = [tex]\frac{1}{3}x+ 4[/tex]

This function has the slope = [tex]\frac{1}{3}[/tex] and y-intercept = 4

If this function is stretched vertically by 'k' the the equation of the new function will be,

y = [tex]a(\frac{1}{3})x+ 4[/tex]

y = [tex]\frac{a}{3}x+4[/tex] ---------(1)

If the slope of this equation is changed to [tex]\frac{2}{3}[/tex],

New equation of the function will be,

y = [tex]\frac{2}{3}x+4[/tex] ---------(2)

Comparing equations (1) and (2),

a = 2

Therefore, graph of the new function will be stretched vertically by 2 units.

The movie theater charges a 3.5% convenience fee to buy your tickets online. If the price for tickets comes to $36.00, what will the total cost be including the convenience fee?

Answers

Answer:

$37.26

Hope this helps.

What expression -5+(-5r)+10​

Answers

The answer for the question is -5r+5

Line ET is tangent to circle A at T, and the measure of arc TG is 46°.
What is the measure of ∠GET?

A: 44°
B: 136°
C: 67°
D: 90°

Answers

Answer:

[tex] m\angle GET = 67\degree [/tex]

Step-by-step explanation:

[tex] m\angle GET = \frac{1}{2} \times \bigg(m\widehat {TN} - m\widehat {TG} \bigg) [/tex]

[tex] m\angle GET = \frac{1}{2} \times \bigg(180\degree - 46\degree \bigg) [/tex]

[tex] m\angle GET = \frac{1}{2} \times \bigg(134\degree \bigg) [/tex]

[tex] m\angle GET = 67\degree [/tex]

Analyze the drawing.The beam in the mobile is balanced.The cups on the right and left are equal,which means the the items can be removed and mobile still balances.This leaves 4 circles on the left,a cup and 1 circle on the right.Now the circle on the right cancels out the circle on the left,leaving three circles on the right.The logical conclusion is that the cup is equal to 3 circles

Answers

Answer:

See the attached

Step-by-step explanation:

Solution is given on the picture

I need help please

4d + 8

Answers

Answer:

4  ( + 2 )

Step-by-step explanation:

Answer:

i am going to assume 4d+8=0 so 4d=-8 and  d=-2

Step-by-step explanation:

Help plz i hate this but everytime I do this I get it worng

Answers

Answer:

The answer is 19.25

Step-by-step explanation:

Key skills needed: Fraction operations, decimal conversion

1) We are given the hint to use 9 as "b", and we get:

---> [tex]a = \frac{16}{8}(9) + \frac{10}{8}[/tex]  

Let's do  [tex]\frac{16}{8}(9)[/tex]

--> [tex]\frac{16}{8}[/tex] is the same as [tex]16[/tex] ÷ [tex]8[/tex]

16 divide by 8 is 2.

2) This means that it would be  ---> [tex]2(9)[/tex]  which is simply 2 times 9.

2 times 9 = 9 + 9 = 18

3) With that result, it would be  ---> [tex]a = 18 + \frac{10}{8}[/tex]

Now, do [tex]\frac{10}{8}[/tex] (10 divided by 8)  ---> Get 1.25

4) 18 + 1.25 = 19.25, so --> [tex]a = 19.25[/tex] is the answer

Hope you understood and have a nice day!!   :D

Find each function value 1. f(2) if f(x) = x + 4

Answers

Answer:

The function value would be 6

Step-by-step explanation:

If f(2) then....

f(x) = x + 4

f(2) = 2 + 4

f(2) = 6

f(2) in f(x)=x+4

f(2)=2+4

f(2)=6

PLEASE HELP MEEEEEEE

Answers

Answer: 50

Substitute 0 for x

Y = 75(0)+50

Y= 50

pleassssssssssss i need help

Answers

line segment AB and CD
It’s the First one AB and CD

29 divided by 6 gbhikgiogfofdldslwkjrtjbjgjfr

Answers

Answer:

4.83333333333

Step-by-step explanation:

oh boy, that wasnt very fun to type. you get the idea. its a lot of threes.

Find −369+(−7) need help

Answers

Answer:

-376

Step-by-step explanation:

I hope that this helps you out..

Answer:

-376

Step-by-step explanation:

An eccentric math teacher told his class that he would assign one problem on the first day of school, two
problems on the second day, four problems on the third day, eight problems on the fourth day, and so on. At
this rate, how many problems would he assign on the tenth day? Find a rule that can be used to determine the
number of problems assigned on the nth day.

Answers

N is the day it is, so since we are trying to find the number of problems for the 10th day, n will equal 10. The quantity of problems is doubling each day, so you will create this rule:

2^n - 1

Now, to plug in the numbers:

2^10 - 1

Then we simplify:

2^9

And now we solve this equation:

2^9 = 512

Given f(x) = - 2x + 5 and g(n) = 3n - 2, evaluate one of the functions with the indicated value f(-3) and explain your answer
[A] f(-3) = -1
[B] g(-3) = - 11
[C] f(-3) = 11
[D] g(-3) =7

Answers

Answer:

[C] f(-3) = 11

Step-by-step explanation:

f(x) = - 2x + 5f(-3) = - 2(-3) + 5f(-3) = -(-6) + 5f(-3) = 6 + 5 =11

This CD case is a rectangle that is 5.5” tall by 5.75” wide. What is the area of the CD case?

Answers

31.625

Step-by-step explanation:

Multiply height by width so

5.5(5.75) = 31.625

The area of the CD case will be [tex]31.625[/tex] squared inch .

What is area ?

Area is the quantity that expresses the extent of a region on the plane or on a curved surface.

Area [tex]= Length * Breadth[/tex]

We have,

A rectangle.

Length of rectangle [tex]=5.5"[/tex]

Breadth of rectangle [tex]=5.75"[/tex]

So,

The area of rectangle [tex]= Length * Breadth[/tex]

                                    [tex]=5.5*5.75[/tex]

                                    [tex]= 31.625[/tex] squared inch

So, the area of CD case is [tex]31.625[/tex] squared inch.

Hence, we can say that the area of the CD case will be [tex]31.625[/tex] squared inch .

To know more about area click here

https://brainly.com/question/20693059

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the perimeter of a rectangle is 36 feet. the length is 2 less than 3 times the width. what is the length? what is the width?

Answers

Answer:

The width is 102

Step-by-step explanation:

Hope this helps! :)

Subject:Mathematics ​

Answers

The vertex
Blah blah blah 20 characters longggggg

) Choose ALL the numbers that are less than 6.58. 6.583 6.5 6.58 5.98 6.538 6.49​

Answers

Answer:

6.5, 6.49

Step-by-step explanation:

The numbers that are less than 6.58 is 6.58, 5.98, 6.538 and 6.49.

What is decimal?

A group of numbers between integers on a number line are known as decimals. They are merely an additional mathematical representation of fractions.

Decimals allow us to express measurable quantities like length, weight, distance, money, etc. with greater accuracy. Integers, also known as whole numbers, are represented to the left of the decimal point, while decimal fractions are represented to the right of the decimal point. The next place, which is (1/10)th or tenth place value, is (1/10) times smaller if we move immediately from the first place.

Given number: 6.58

Now, we have to find the number less than 6.58

6.58 < 6.583

6.58 > 6.5

6.58 = 6.58

6.58 >5.98

6.58 > 6.538

6.58 > 6.49.

Hence, the numbers that are less than 6.58 is 6.58, 5.98, 6.538 and 6.49.

Learn more about decimal here:

https://brainly.com/question/548650

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Select all that apply. If there are 8 chocolate chip cookies out of 20 total cookies in a jar, what is the probability that you will randomly choose a chocolate chip cookie?
A. 2/5
B. 0.4
C. 0.8
D. 40%​

Answers

Answer:

B) 0.4, D) 40% and A) 2/5

Step-by-step explanation:

Part/Whole=%/100

8/20=0.4*100=40%=2/5=0.4

The probability that you will randomly choose a chocolate chip cookie is 2 by 5 and 0.4, and 40%.

Given that,

There are 8 chocolate chip cookies out of 20 total cookies in a jar.

Based on the above information, the calculation is as follows:

[tex]= 8\div 20\\\\= 2\div 5\\\\= 0.40\\= 40\%[/tex]

Learn more: brainly.com/question/16911495

Which of the following can change on a daily basis?

a. Climate
b. Weather
c. Both climate and weather
d. Neither climate or weather

Answers

Answer:

the correct awnser would be c because both the climate and weather can change daily

The answer is b.
This is because weather changes on a daily basis but climate on the other hand changes over a long period of time.

what is the speed of a bowling ball that travels 100 meters in 5 seconds

Answers

20 meters per second or 20 mps
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