Answer:
Huh?
Step-by-step explanation:
Answer:
hope it helps you...................
let's find the area of the outer circle and the inside circle
the inside's circle area
A= π x 6²=36π
the outer's
A' = π x 4x²= 4πx²
A'-A=4πx²- 36π=160πcm² equivalent to x²- 9=40, so x²=49 implies x =sqrt(49)=7, x=7.
Add 5 to both sides of the equation.
x=-14+5
Add -14 and 5.
x=-9
Answer:
-6
Step-by-step explanation:
Use a calculator
