Find coordinates of point C 2/3rd of the way from A(6,-10) to B (-3,8)

X+ y = 5 ; x - y =3 solve using linear combination

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.