Use the expansion shown tk simplify the expression

Acollege is planning to construct a rectangular parking lot on land bordered on one side by a highway. the plan is to use 680 feet of fencing to fence off the other three sides. what dimensions should the lot have if the enclosed area is to be a maximum?

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x

Astraight water slide is 175 feet above ground and is 200 feet long. what is the angle of depression to the bottom of the slide?