An object is thrown upward at a speed of 71 feet per second by a machine from a height of 6 feet off the ground. The height h of the object after t seconds can be found using the equation h = − 16 t 2 + 71 t + 6

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?