A could be any value less than 1
It should be 31.41 bc the equation is 2•pi•radius
ANSWER

EXPLANATION
The given expression is

This is having a negative index. We must first of all change to a positive index.
Recall that,

We apply this law of exponents to get,

We cab rewrite the given expression to obtain;

This will simplify to give us,
Answer:
E=h*mg
Step-by-step explanation:
3=6/2
6=3*2................
Answer:
<u><em>d</em></u>
Step-by-step explanation:
because if you. 5 x 2 x 4; 6 x 4 x 5=<u><em>equals your answer as the one up in the question </em></u>if you don't trust me use calculator.then you'll see which is 160.