A 20 ft. beam leans against a wall. The beam reaches the wall 13.9 ft. above the ground.
What is the measure of the angle formed by the
beam and the ground?

a     44°

Step-by-step explanation:

Think of the right triangle formed by the beam, the ground, and the wall.

The beam is the hypotenuse. For the angle between the ground and the beam, call it angle A, the 13.9 ft side is the opposite leg. The trig ratio that relates the opposite leg and the hypotenuse is the sine.

sin A = opp/hyp

sin A = 13.9/20

sin A = 0.695

A = sin^-1 0.695

A = 44°

the answer for the second equation is (4,0)

the answer is c i hope you got it right because i did do some math over this, just not sure how to upload.