Question

help please!

Answer 1

@hannah041 help please

Answer 2

what's the area of a square?

Answer 3

base times height

Answer 4

so if base is x, what's area?

Answer 5

x^2

Answer 6

@petewe

Answer 7

and the area of a circle is what?

Answer 8

pi times r^2

Answer 9

given circumference 12-4x, find r

Answer 10

3^2=9

Answer 11

where did that come from?

Answer 12

12-4x=0

Answer 13

let me just show you the whole solution

Answer 14

Area of sq = x^2
Area of circle = pi r^2

Circumference of circle = 2 pi r

Therefore,

2 pi r = 12-4x

r = (12-4x)/2pi

area of circle = pi [(12-4x)/2pi]^2

Therefore,

A(x) = x^2 + pi [(12-4x) / 2pi]^2

Answer 15

ask where you get lost

Answer 16

ok and what would the answer give you?

Answer 17

that is the answer