you are standing 5 meters from the base of a tree. the angle elevation from the bottom of your feet to the top of the tree 71 °. how tall is the tree?

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c?

Find the domain of the following expression: 1/(√x)-2

Solve the problem by making up an equation. a man could arrive on time for an appointment if he drove the car at 40 mph; however, since he left the house 15 minutes late, he drove the car at 50 mph and arrive 3 minutes early for the appointment. how far from his house was his appointment?