Need help on this test ASAP ppllz:;;(

The data in the table represent the height of an object over time. which model best represents the data? height of an object time (seconds) height (feet) 05 1 50 2 70 3 48 quadratic, because the height of the object increases or decreases with a multiplicative rate of change quadratic, because the height increases and then decreases exponential, because the height of the object increases or decreases with a multiplicative rate of change exponential, because the height increases and then decreases

Evaluate cos2θ for cosθ = square root of 3/2

Which of the following can be used to explain a statement in a geometric proof?