(cos(x))/(1 + sin(x)) - (cos(x))/(1 - sin(x)) = - 2tan(x)

Which number completes the inequality? 2/3 < _ < 7/9

The volume, v, of a rectangular prism is determined using the formula, where / is the length, w is the width, and his theheight of the prism. carltren solves for w and writes the equivalent equation w=using this formula, what is the width of a rectangular prism that has a volume of 138.24 cubic inches, a height of 9.6 inches,and a length of 3.2 inches?

Write the standard form of an equation with (see picture below)