The formula for the volume, v, of a cone having the radius, r, and the height, h, is shown below. write the formula to calculate the height, h.

Solving for a variable is an illustration of changing the subject of formula

The formula to calculate h is:

The volume of a cone is:

Multiply both sides by 3

Divide both sides of the equation by

So, we have:

Rewrite as:

Hence, the formula to calculate h is:

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Cone Volume = (PI * radius^2 * height) / 3

height = 3 * Cone Volume / (PI * radius^2)

Step-by-step explanation:

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3