Mathematics High School

A= 1/2 π r ^2 solve for pi

Answers

Answer 1

Answer:

Well thats pretty easy. the answer is non-determineable

Step-by-step explanation:

prove me wrong

Answer 2

The solution for pi is π = 2A/r² where r is the radius.

What is the area of a circle?

The area of a circle is defined as the space occupied by the circle in a two-dimensional plane. In other word, the space occupied under the region or circumference of a circle is called the area of the circle.

The formula for the area of a circle is A = πr²,

Where r is the radius of the circle.

For example, if the radius of circle is 6cm, then its area will be: Area of a circle with 6 cm radius = πr² = π(6)² = 36π square cm.

Given data as :

A = 1/2 πr²

Solve for pi

⇒ A = 1/2 πr²

Multiply by 2 both the side

⇒ 2A =  πr²

⇒ 2A/r² =  π  or

⇒  π = 2A/r²

If A = 76 cm² and π  = 22/7,

⇒ A = πr²

⇒ A/π = r²

⇒ √A/π = r

Substitute the values, we have:

⇒ √76 /(22/7) = r

⇒ √76 * 7/22 = r

⇒ √532/22 = r

⇒ √24.1818 = r

⇒ 4.917 = r

⇒ r = 4.92 cm (Rounding to two decimal places)

Learn more about the area of the circle here:

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The question seems to be incomplete the correct question would be

If A = 76 cm² and π  = 22/7, what is the value of r in centimeters?

Related Questions

help quicklyy pleasee

Answers

Answer:

b

Step-by-step explanation:

Answer:

It is B.

Step-by-step explanation:

Hope this helped have an amazing day/month/year!

MY TEACHER IS ON THIS APP LOL

Answers

Answer:

hijjjhhhhghhhhhhjjiuuuu

Answer:

lol. :-):-):-):-):-):-) ^_^

i need help with this question...
2x + 3 ≤ 13

Answers

Answer: x ≤ 5

Step-by-step explanation:

x is greater than or equal to 5. you can subtract 3 from each side of the inequality, and then divide by 2. you then have the answer.

Hello Pleasa help ASAP !!!!

Answers

Would have to go with A.

Most of us have to invest in study time for recall at test time.

PLEASE HURRY!!!!!!!
I PROMISE TO VOTE BRAINLIEST!!!!!!

Answers

it’s the last one. hjsksios
it is the last one ^^^^

Which One Doesn't Belong?
6(4 + 3)
418 + 14)
3(8 + 6)
18 + 24

Answers

418+14

The other ones all add up to 42

Hope this helps!
It should be the second choice

URGENT!!! PLEASE HELP (30 points !!!)

Use the line tool to graph the equation on the coordinate plane.


y=-3

Answers

the line with the arrows is where y=-3 is

I need help with math work pls explain

Answers

Answer:

0.1 % first question

0 second question

Help plz thx thx for the help​

Answers

Answer:

A is irrational and I believe the rest are rational

Please please help please please

Answers

Answer:

A. 4/ 3

Step-by-step explanation:

With reference angle X

perpendicular (p) = 24

base (b) = 18

Now

tan X = p / b = 24 / 18 = 4 / 3

Which does the ratio 17:44 represent?

Answers

Answer:

Step-by-step explanation:

the part-to-whole relationship between homework help and sports

Of the 75 boys in athletics, 6 boys wanted to play tennis. What percent of the boys in athletics wanted to play tennis?

Answers

Answer:

4.5%

Step-by-step explanation:

I am pretty sure that 6 percent of 75 is 4.5..

I hope that this helps u

1) Work out the size of angle x.

2) Give reasons for your answer.

(15 points if correct)

Answers

Answer:

x= 75°

because 180°-105°=75°

Hector has already spent 33 minutes on the phone, and he expects to spend 1 more minute
with every phone call he routes. In all, how many phone calls does Hector have to route to
spend a total of 50 minutes on the phone?

Answers

he will have 17 more phone calls

Need help with this one

Answers

Answer:

3/2 and 2/3

Step-by-step explanation:

Scale Factor = Image / object

You can take either of the three sides so as far as it corresponds with the side of the other triangle

Let's take longest sides

= 15/10 = 3/2 That's scale Factor from Triangle PQR to STU

The second question is the reverse of the first one

= 10/15 = 2/3

The same applies to when you use the other sides of the triangles.

The sum of twice a number and 18 is 5 less than three times the number, Write the
equation and find the number.

Answers

Step-by-step explanation:

Let x represent the number.

We have 2x + 18 = 3x - 5, therefore x = 23.

The number is 23.

a) complete the table of values of y=6-2x

b) draw the graph on the grid

c) solve 6- 2x = 3​

Answers

C is x=1.5. Can’t be bothered to do the rest

write a equation to find the "n" term of each sequence

1,3,5,7,....

Answers

Answer:

a1=1

d=3-1

=2

an=a1+(n-1)d

=1+ (n-1)2

=1+2n-2

2n-1

Pleaseee help me ASAP, I’m confused and if you are too please don’t just answer for the credits at least read carefully then try to help :(

Answers

Answer:

BBEFI or H

Last one could be either "Prove" or "CPCTC"

n is an integer.
Write the values of n such that -15 < 3n < 6

Answers

Answer:

-5<n<2Thus ans(-4,-3,-2,-1,0,1)

Step-by-step explanation:

Divide all by 3 so that we can make n and find the value using sign

x^2= 36/121 what is x?

Answers

Answer:

0.545436

Step-by-step explanation:

First convert the fraction into a decimal

36/121 is 0.2975

Then find the square root which is 0.545436

if anyone knows could u please help

Answers

multiply the input by -4 ..

HELP ME PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

For Which expression is of trinomial degree 1?
6+X-y
For what is the value of M
5

Change each decimal to a percent by moving the decimal point two places
to the right. 0.762

Answers

literally 76.2%. doesn't it say it in the text...

Answer:

76.2%

Step-by-step explanation:

In a recent survey, 55% of cellphone owners said they text message, what fraction of cellphone owners is this?

Answers

Answer:

11/20

Step-by-step explanation:

[tex]55\% = \frac{55}{100} = \frac{11}{20} [/tex]

11/20 5% more then 50

A pulley rotates through 107° in one minute. How many rotations does the pulley make in an hour!
The pulley makes rotations per hour.
(Simplify your answer. Round to the nearest whole number.)

Answers

Answer:

18 rotations.

Step-by-step explanation:

As there are 360 degrees in a circle, by proportion, the time for 1 rotation

= (360/107) * 1

= 3.364 minutes.

So the number of rotations in 1 hour (60 minutes)

=  60 / 3.364

= 17.83

Number of rotations does the pulley make in an hour is 18.

Here,

A pulley rotates through 107° in one minute.

What is rotations?

The action or process of rotating on or as if on an axis or center.

Now,

As there are 360° in a circle, by proportion;

Time for one rotation = (360/107) x 1

                                = 3.364 minutes

Hence, number of rotations in 1 hour

= 60 / 3.364

= 17.83

So, Number of rotations does the pulley make in an hour is 18.

Learn more about the Rotations visit:

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Which letter is in the solution set for graph #1

Answers

Answer:

Its 50/50 with T or B I say the answer is B

Step-by-step explanation:

Can anyone help me please!?

Answers

Answer:

Step-by-step explanation:

(==========================)

(                        12.024               )

(                        12.04                 )

(                   1,204.2                   )

(==========================)

12.024          12.04        1,204.2

=========,=========,=========

hope this helps

Order the following integers from least or greatest
A. -15, +60, -32, +11, 0

B. -15, -12, 0, +81, -29

Answers

Answer:

Hope this helps!

Step-by-step explanation:

I'm going to do it from least to greatest:

A. -32, -15, 0, +11, +60

B. -29, -15, -12, 0, +81

Good Luck! \(￣︶￣*\)


15 POINTS HELPPPP


1. Object B has more mass than Object A. How would the velocity of Object B change if you exerted
the same strength force on Object B as you did on Object A? Why?

Answers

im late do you still need the answer aa it wont send hope that helps
Is it already due????????
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