18)
A cone with a height of 9 cm has a volume of 48π cm3. What is the radius of the cone? (The volume of a cone is given by the formula V = 1/3πr2h.)
A) 2 cm
B) 3 cm
C) 4 cm
D) 6 cm

C) 4 cm

Step-by-step explanation:

we know that

The volume of the cone is given by the formula

we have

substitute the given values

simplify

10% of increase is the final answer! : )

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

eventually after a few more steps, your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x