Answer:
r = 5 cm
Step-by-step explanation:
A = πr²
78.53 = (3.14)r²
divide by 3.14
25 = r²
r = ±5
r = 5
Answer:
201.06
Step-by-step explanation:
The Answer Is 14/15 Hope This Helps.
The answer to number 7 is 7.5
Step-by-step explanation:
<u>Substitute x = -3, y = -3 into the </u><u>g</u><u>i</u><u>v</u><u>e</u><u>n</u><u> </u><u>equation:</u>

<u>Simplify and Solve:</u>

The point (-3, -3) doesn't satisfy the given equation.