Consider these functions:

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

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.

The trigonometric ratios sine and secant are reciprocals of each other