Find the midpoint of each line segment.
лу
21
4
-2
2
4
X
-21

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

With finding limits of multi variable !

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