A dc-9 aircraft leaves an airport from a runway whose bearing is n4747degrees°e. after flying for three fourths 3 4 mile, the pilot requests permission to turn 90degrees° and head toward the southeast. the permission is granted. after the airplane goes 1 mile in this direction, what bearing should the control tower use to locate the aircraft?

Anew obstacle course is home to several new types of challenging obstacles. one such obstacle is traversing a 15-stair staircase. to make it more challenging, the stairs are not uniformly spaced. rather, the vertical space between consecutive stairs for the first 10 stairs is 113 feet and the vertical space for the last 5 stairs is 134 feet. what is the total vertical distance traveled ascending and descending the entire 15-stair staircase?