The function f(t)=300(1.9)^{30t}f(t)=300(1.9) 30t
represents the change in a quantity over t months. What does the constant 1.9 reveal about the rate of change of the quantity?

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters