Do the ratios 18/16 and 3/12 form a proportion?

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.

M.xyz =radians. covert this radian measure to its equivalent measure in degrees.

Identify this conic section. x2 - y2 = 16 o line circle ellipse parabola hyperbola