Which of the following statements correctly describes the points? The distance between (3, 4) and (3, –7) is 11 units. The distance between (3, 4) and (3, –7) is 3 units. The distance between (4, 3) and (–7, 3) is 10 units. The distance between (4, 3) and (4, –7) is 4 units.

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