If f(x) = (2x² + 5), then f'(x)

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Compare the following pair of numbers a and b in three ways. a. find the ratio of a to b. b. find the ratio of b to a. c. complete the sentence: a is percent of b. a=120 and b=340 a. the ratio of a to b is . b. the ratio of b to a is . c. a is nothing percent of b.