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the costs of a company are represented by the function c(x)=0.22x+1,750. its revenues are represented by the function r(x)=4.1x. find the function that represents the company's profits.

p(x) =

Amass weighing 16 pounds stretches a spring 8/3 feet. the mass is initially released from rest from a point 2 feet below the equilibrium position, and the subsequent motion takes place in a medium that offers a damping force that is numerically equal to 1/2 the instantaneous velocity. find the equation of motion if the mass is driven by an external force equal to f(t)=cos(2t).