4x−2y=5 Determine the missing coordinate in the ordered pair (−5,?) so that it will satisfy the given equation.

In triangle abc segment de is parallel to the side ac . (the endpoints of segment de lie on the sides ab and bc respectively). find de, if ac=20cm, ab=17cm, and bd=11.9cm;

Which best explains why this triangle is or is not a right triangle?

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.