Solve for pi : C = 2 pi r

π= C/2r

Step-by-step explanation:

In order to solve for pi, we must get pi by itself on one side of the equation.

C= 2πr

Let's rearrange the right side of the equation. We can do this because of the commutative property of multiplication.

C= 2πr

C= 2r* π

pi is now being multiplied by 2r. The inverse of multiplication is division. Divide both sides of the equation by 2r.

C/2r= 2r*π/2r

C/2r= π

π=C/2r

it is a reproduction.

step-by-step explanation:

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.