Answer:


A=5257.76
Step-by-step explanation:
Or use a calculator online.
Answer:
Step-by-step explanation:
The formula to find the radius of a sphere is 
3.14*4*100=1256
I hope this helped
Answer:
[0,9]
Step-by-step explanation:
The domain is the first set of the ordered pair. When finding the domain you are supposed to find which x value it starts from to where it ends. The x value starts from 0 and ends and the 9th unit on the x-axis which would give us 0,9 now since both points are closed you would use these symbols [ ] to show that it is closed meaning the answer would be [0,9]
Note:
I'm sorry if this is wrong but this is what I believe the answer is.
Answer: radius is 3/8 and circumfrance is 3/4
Step-by-step explanation:
9/64pi=r^2pi
/pi /pi
9/64=r^2
root9/64 rootr^2
3/8=r
Circumfrance= r*2
circumfrance= 3/8*2
Circumrance= 3/4