Chuck drops a rock from a height of 70 m. how long will it take the rock to hit the ground? use the formula h(t)=−4.9 t 2 + v o t+ h o , where v o is the initial velocity and h o is the initial height. round to the nearest tenth of a second.

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′?

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

Tell whether the two rates form a proportion