Answer:
Using the formula πr^2, with r=6, the area would be approximately 113.1 cm
Answer:
a. x+8=21
b. x = 13
Step-by-step explanation:
The answer is E. 2^2/7 + 2/7
Answer:
r = 3.2
Step-by-step explanation:
If A varies inversely with the square of r, then A = kr^2
75 = k*4^2 = 16k
k = 75/16
Now A = (75/16)*r^2
48 = (75/16)*r^2
r^2 = 48(16/75) = 256/25
r =
= 16/5 = 3.2
The answer is 30 because u have to round 73 to 70 and 13 to 10 and in the middle of 10and 70 is 30