Solve the quadratic by taking the square root −5x2=−500 please help me solve this asap

In the rectangle below ac=30 units what is de

Select a graph that have an equation with a < 0

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′?