Let x=small circle
2x = bigger circle
πx^2 + π(2x)^2 = 80π
x^2 + 4x^2 = 80
5x^2 = 80
x^2 = 16
x = +/- 4
but we need the positive one because there's no negative measurement so
the answers are:
4m and 8m
Answer:
<h2>D.

or StartFraction x squared + 3 x minus 12 Over (x + 3) (x minus 5) (x + 7) EndFraction</h2>
Step-by-step explanation:
Given the expression
, the dfference is expressed as follows;
Step1: First we need to factorize the denominator of each function.

Step 2: We will find the LCM of the resulting expression

The final expression gives the difference
Answer:60
Step-by-step explanation:
Answer:
B is correct
Step-by-step explanation:
i think