Answer:
Volume increasing rate = 
Explanation:
We rate of change of radius of sphere, 
Diameter of sphere = 100 mm
Radius of sphere = 50 mm
Volume of sphere, V = 
Rate of change of volume = 

Substituting known values

Volume increasing rate = 
The answer to this is x=3
Answer:
you have to add together all the numbers you where given then divide
Step-by-step explanation:
So the volume of the cylinder = pi r^2 * h
Height = 4 feet tall
Radius = 1 foot
So just do pi * 1^2 * 4
3.14 x 1^2 x 4 = 12.56 cubic feet