A pilot in a rescue helicopter spots a person stranded on an island. The angle of depression to the island is 40°. If the helicopter is flying at an altitude of 100 ft, how far is the helicopter from the island

Step-by-step explanation:

We use the trigonometric function sin α = opp / hyp

sin 40 = 100/ x , multiply both sides by x

x sin 40 = 100, divide both sides by sin 40

x = 100/ sin 40, set the calculator on degrees mode and solve

x ≈ 155. 57 ft

3x + 4y -25 =0 represents the amount of change sianna should recieve