3x+6y=-2 15x+30y=-10find the solution to the following system of equation

How do you find the area of a triangle

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?

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.