I’m taking a test and need help, anyone know?!?!

Answer the questions in the attachment. a rescue helicopter is at point a and a rescue boat is at point e. the helicopter pilot spots boats in distress at points d and c,with angles as marked in the diagram. figure abce is a rectangle. the altitude of the rescue helicopter, represented by ae, is 5000 feet.

How can you decide witch operations to use to slice a two step equation

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)