5. suppose you have 80 ft of fence to enclose a rectangular garden. the function
a = 40x - xgives you the area of the garden in square feet where x is the width
in feet.
what width gives you the maximum gardening area? what is the maximum area?

Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

What is a graph with a never ending line called?