Ten times the square of a non-zero number is equal to forty times the number

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

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct

The graph of a curve that passes the vertical line test is a: