A Jedi trainee watches Obi Wan practice his Jedi craft from a tower 250 feet directly above him. The Jedi trainee has to tilt his head downward 16 degrees to see Obi Wan. How far is Obi Wan from the base of the tower?

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle

Aadc is formed by reflecting aabc across line segment ac, as shown in the figure. if the length of ac is 4 units, the area of aadc is square units.