Answer:
A. 8π cm; 16π cm2
Step-by-step explanation:
circumference: C = 2πr = 2(4)π = 8π cm
area: A = π(r^2) = (4^2)π = 16π cm^2
Answer:
25
Step-by-step explanation:
180-130=50
50/2=25
Assuming the root sign is over both the numerator and denominator, find the square root of both numbers (6 and 11). The two answers are positive and negative 6/11 because multiplying two negatives makes a positive.
Answer:
6^2
Step-by-step explanation:
It is written as a division problem. When dividing exponents with the same base you subtract the exponents. in this class, 7-5=2. So now you write the new exponent:
