Answer: 8 pi
Step-by-step explanation: So we know that area of a circle is pi times r^2 so if we reverse that formula it would be square root of 16 pi which would be 4 pi and divide by pi so the radius is 4. And we know that the formula for circumference is 2 times pi times r, so 2 times 4 times pi is 8 pi. 8 pi is the cIrcumference! :)
The correct answer is m=-2 (slope) and b=4 (y-intercept).
Answer: $12.65
Step-by-step explanation: sikeeeeeeeeeeee
Answer:
144
Step-by-step explanation:
We have 240 7th graders
60% check out fantasy books
240 *60%
240 *.60
144 will check out fantasy books
Answer:
36π - 72 sq in.
Step-by-step explanation:
π×12² = 144π
90/360 × 144π = 36π
Triangle = ½ × 12 × 12 = 72
Segment = 36π - 72