Which of the following sets of numbers could not represent the three sides of a right triangle?
{13,84,85}
{16, 63, 65}
{54, 72,90)
{8, 15, 16)
(NO LINKS PLZ)

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?