This is an EDGE assignment for Alg II and Statistics!!!

What describes horizontal cross section of the right rectangle 6m 8m 5m

Solve the equation by completing the square. x^2+2x=17

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