How do you solve l v

Which graph corresponds to the function f(x) = x2 + 4x – 1?

Asailor is looking at a kite. if he is looking at the kite at an angle of elevation of 36and the distance from the boat to the point where the kite is directly overhead is 40 feet, how high is the kite?

In the diagram below? p is circumscribed about quadrilateral abcd. what is the value of x