The equation c=2(3.14)r is the formula that relates the circumference of a circle to the radius. this gives us the ability to calculate pi is we physically measure a circle's circumference and radius. solve the equation for pi to get the formula you would use to perform this activity.

Hello from MrBillDoesMath!

r = C/6.28

Discussion:

Note that C = 2 * Pi * r is the exact formula. As Pi is approximately 3.14, the given formula, C = 2 (3.14) r, is an approximation.  Solving it for r:

C = 2(3.14) r               =>                as 2 * 3.14 = 6.28

C =  6.28 r                 =>                divide both sides by 6.28

r ( 6.28/6.28) = C/6.28 =>           as 6.28/6.28 = 1

r = C/6.28

Thank you,

MrB

the correct answer is d

hope this

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.