Simplify the expression. What classification describes the resulting polynomial?

(x2 + 7x) + (2x2 − 7x)

A.
linear monomial
B.
linear binomial
C.
quadratic binomial
D.
quadratic monomial

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

Ahiking trail is 6 miles long. it has 4 exercise stations, spaced evenly along the trail. what is the distance between each exercise station?

Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.