Answer: C
Step-by-step explanation:
use the x and y
13. 1
14. 1
15. any number and 0 will have a quotient of 0.
for example 7/0=0 . 8/0=0 . 9/0=0
if you try and check your work using multiplication 7*0=0 . 8*0=0 . 9*0=0
then you will realize the rule is right
Answer:
The exact volume of the cone is 
Step-by-step explanation:
we know that
The volume of the cone is equal to

we have


substitute the values

sum of two angles of triangle are equal to the exterior angle of triangle