Which method can be used to find the area of the composite shape?
Decompose the figure into one semicircle and one rectangle and add the areas.
Decompose the figure into one semicircle and one rectangle and subtract the area
Decompose the figure into two semicircles and one rectangle and subtract the are
Decompose the figure into two semicircles and one rectangle and add the areas.

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

Which is the focus of a parabola with equation y2=4x

Convert (-3,0) to polar form. a. (3,0’) b. (-3,180’) c. (3,180’) d. (3,360’)