Can I get some help ill make you brainliest :]

Giving ad is congruent to bc and angle bcd is congruent to angle adc prove d e is going to ce

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′?

Which expression is equivalent to 64 - 9x^2?