The measure of acidity (ph) can be found with the model where ph is the acidity and h is the hydrogen ion concentration. (remember, the base here is 10.) what is the hydrogen ion concentration, h, for a fruit whose ph is 6.5? (leave you answer in powers of 10.)

Alarge rectangle is divided into four smaller rectangles.

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be 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.