Suppose the revenue of a company is given by the function R

Suppose the revenue of a company is given by the function R equals 0.005 x cubed plus 300 x squared minus 250 where x is number of units sold. Find the revenue when x=21 units. Round the answer to the nearest cent.

Solution

Revenue of the company is given by:

R = 0.005x^3 + 300x^2 - 250

x = number of units sold

given that when x = 21 find R

R = 0.005*21^3 + 300*21^2 - 250

R = $132096.30

OR R = $132096