Identify which trigonometric ratio (sin, cos or tan) you would use to solve the triangle. You do not need to solve them.

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.

Which of the following can be used to explain a statement in a geometric proof?

Find the solution(s) to x^2-14+49=0