Select all the pairs that are alternate interior angles. 1/2 5/6
4/38/7
AZ 5 and /24
BZ 3 and /2 5
CZ6 and /2 5
D / 8 and /21
E /2 and /8

Find the coordinates of point x that lies along the directed line segment from y(-8, 8) to t(-15, -13) and partitions the segment in the ratio of 5: 2.

Vertical angles must check all that apply

Which equation can be used to determine the reference angle, r, if 0=7 pi/12?