Which of the following inequalities are true? Select the two correct answers.
O. 4 > 7
O. 1-4/ < 4
O. 1-7] > 4
O.171 >|-71
O E. 1-4 <1-71

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.

Find the value of the cosine for angle a

What is the length of the unknown leg in the right triangle ?