Which of the following represents a nonlinear function? Check all that apply. quadratic function

exponential function

linear function

absolute value function

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?

Which of the following contains a variable?

Rationalize the denominator- 12x/√x-10