F(x) = 15 -- 3x and g(x) = 10 - 4x

What is the definition of exponential decay?

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab

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).