The volume of a cone is 62.8 cubic inches. the height of the cone is 15 inches. what is the radius of the cone, rounded to the nearest inch? use pi = 3.14 2 inches 4 inches 8 inches 9 inches

Recall the formula for volume of a cone:  V = (1/3)(base)(height).

Here the volume is V = 62.8 cu in. = (1/3)(pi* r^2)(15 in)
              
                   62.8 cu in      
or, r^2 =  = 4 in^2
                (1/3)(3.14)(15 in)

Then the radius of the base is sqrt(4 in^2) = 2 in.

It's like discovering the answer to a puzzle. the purpose in solving an equation is to find the value or values of the variable that makes it a true statement. any value of the variable that makes the equation true is called a solution to the equation.