Point Q is the midpoint of GH¯¯¯¯¯¯. GQ=2x+3, and GH=5x−5 . What is the length of GQ¯¯¯¯¯?

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?

Let x = a + bi and y = c + di and z = f + gi. which statements are true?