What are the solutions to the inequality (x-3)(x+5) so?
{x|35x55)
© {xi -55x5-3)
o {xl-55x53}
{xl-35x< 5}

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