What value of x is in the solution set of 9(2x + 1) < 9x – 18?

-4
-3
-2
0 -1

Simplify the expression and find the missing terms. the simplest form of has in the numerator and in the denominator.

An angle that measures between 90 and 180° is called a(,

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