If my circumference is 163.28ft, what is my radius?

26 ft

Step-by-step explanation:

The circumference is given by

C = 2 * pi *r

163 .28 = 2 * 3.14 * r

163.28 = 6.28 r

Divide each side by 6.28

163.28/6.28 = 6.28r/6.28

26 =r

it's d.

step-by-step explanation:

because: -1(4x + 1y) +2 (1x-3y) distribute each number into the parenthesis.

then you would get: -4x - 1y + 2x -6y combine like terms

and get: 2x -7y

hope my answer has you if not then i'm sorry.

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

(picture explains)