For every time the large wheel of the pictured tractor rotates, the smaller front wheel rotates 2.5 times. If the radius of the front tire measures 1.6 feet, what is the radius of the rear tire

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ab=9, and ac=12, find hc.

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)

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