Write the decimal 47.4 as a mixed number

For what values of x is x2 + 2x = 24 true?

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.

Typically a point in a three dimensional cartesian coordinate system is represented by which of the following answers in the picture !