Answer:
A
Step-by-step explanation:
ANSWER

EXPLANATION
The volume of the cone is

The height of the is 6 inches.
We put the values into the volume of cone to get.


Divide through by 2π.

The expression on the LHS is a perfect square trinomial.


Answer:
14 minutes
Step-by-step explanation:
4 x every 100 bottles
100, 200, 300 = 3
4 x 3 = 12
if 4 minutes is for every 100 bottles, then 50 is half of 100. so 4 divided by 2 is 2
12 + 2 = 14
We have two options in the case of the equation for parabola y=ax²:
1) in the case that a is negative the parabola opens down
2) in the case that a is positive the parabola opens up
So the correct answer is: if a is positive, the parabola opens up.