Find the height of a cone shaped room with a diameter of 144 ft and a volume of 81430.1 cubic ft.

The height is 15 feet

Step-by-step explanation:

If you use the formula for cone height and substitute in your values:

h=3 x (V/πr^2)

h=3 x (81430.1/72^2π)

h=15

y < -3

step-by-step explanation:

-3y - 2 > 7

-3y -2 + 2 > 7+2

-3y > 9

-3y/-3 < 9/-3   (change the inequality sign when multiplying or dividing by a negative number)

y < -3