Step-by-step explanation:
a.) the given term can be written as
=

=

=

hence the given term is

where b = 3
b.)
=

=

=

=

hence the given term is 12
Answer: D
Step-by-step explanation:
The volume of a cone is

since V=65.94 and r=3, you just plug it in and solve for h which results to 6.996cm