Answer:
the answer is A.
Step-by-step explanation:
A=pi(c/2)^4=pi^2/c^216=(5pi)^2/8=25pi^2/8
Answer:
<h2>Sets of Ratios that are Proportion</h2>
3/11 and 17/6
<h3>12/7 and 36/21</h3>
60/55 and 7/25
7/6 and 52/48
<h3>4/10 and 8/20</h3>
<h3>Solution:</h3>
> 12/7 and 36/21

> 4/10 and 8/20

<span>f(x) = -3x^2</span>
insert x=2
y=-3*2^2
y=-3*4
y=-12
so your pair is (2,-12)