100 POINTS PLEASE HELP! The ideal speed of an elevator is 120 feet/minute. But the elevator's speed is allowed to vary by less than a certain amount. Identify the graph of
the variance levels that indicate unacceptable elevator speeds.

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?