Radius of cone is decreasing at the rate of
inches
What is rate of change?
Suppose there is a function and there are two quantities. If one quantity of a function changes, the rate at which other quantity of the function changes is called rate of change of a function.
Here rate of change of radius of cone has been calculated
Radius of cone = 18 inches
Height of cone = 11 inches
Volume of cone (V) = 

Radius of cone is decreasing at the rate of
inches
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I’m not sure ut I think it’s negative because the change is negative
Answer:
7 degrees, Because the entire triangle has to add up to a 180 degree triangle
Step-by-step explanation: