Write the inverse of y=pi/2+ sin x

The speed of a falling object increases at a constant rate as time increases since the object was dropped. which graph could represent the relationship betweent time in seconds, and s, speed in meters per second? speed of a falling object object over time

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2