Given mZR = 35º and QS = 18, what is the length of RS?
0 18.1
O 31.4
0 53.7

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

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

See attachment below and find the equivalent of tan(∠qsr)