The function h(t) = -4.9t^2+19t+1.5 describes the height in meters of a basketball t seconds after it has been thrown vertically into the air. What is the maximum height of the basketball? Round your answer to the nearest tenth.

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

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.