Step-by-step explanation:
here's your solution
=> volume of circular cone = (1/3)πr^2h
=> radius = 4 cm ,, height = 9 cm
=> volume of cone = (1/3)*(22/7)*16*9
=> volume of circular cone = 150.8 cm^3

Answer:
True
Step-by-step explanation:
The integral

in the integral we have a product of a monomial: 
and an exponential function: 
In general case, when we have a combination of these two things you can use the integration by parts, where
will be
and
will be
.
The statement is true
Make this more clear please so we can answer for you