28 1/3 mins to run 3 1/3 miles

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?

A)a square brown tarp has a square green patch green in the corner the side length of the tarp is (x + 8) and the side length of the patch is x what is the area of the brown part of the tarpb)a square red placemat has a gold square in the corner the side length of the gold square is (x - 2) inches with the width of the red region is 4 in what is the area of the red part of the placemat