What is the approximate value of a local maximum for the polynomial?

What is the sum of these mixed numbers 2 1/8 + 4 3/8

Sketch one cycle if the cosine function y=2cos2theta

The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet