Two trains traveling from different point one at 38 mph the other at 42 mph going 400 miles when will the cross each other

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

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.