Michael stands 10 feet from a table, and notices a plate resting on the edge of the table. The top of the table is 3 feet high, and Michael is feet tall. What is the angle of depression from Michael to the plate? Round your answer to the nearest degree.

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