Find an equation for the plane that contains the line v = (−1, 1, 2) + t(3, 9, 5) and is perpendicular to the plane 4x + y − 9z + 2 = 0.

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?