Evaluate the expression when x=3

Given: hf || jk; hg ? jg prove: fhg ? kjg to prove that the triangles are congruent by asa, which statement and reason could be used as part of the proof? fgh ? kgj because vertical angles are congruent. jkg ? hfg because vertical angles are congruent. fhg ? jkg because right angles are congruent. hfg ? kjg because alternate interior angles are congruent.

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*