Which polynomial function f(x) has a leading coefficient of 1, roots of -5, 3 and 6 with multiplicity 1, and root -2 with multiplicity 3? 1. f(x) = 3(x+2)(x+5)(x-3)(x-6)
2. f(x) = 3(x-2)(x-5)(x+3)(x+6)
3. f(x) = (x+2)(x+2)(x+2)(x+5)(x-3)(x-6)
4. f(x) = (x-2)(x-2)(x-2)(x-5)(x+3)(x+6)

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