Anyone know how to solve help me pls

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Heather is riding a quadratic function that represents a parabola that touches but does not cross the x-axis at x=-6

Its due 1. what is the product of 1/2-1/4? write your answer in standard form. a) show your work. b) is the product of 1/2x-1/4 and 5x^2-2x+6 equal to product of 1/4x-1/2 and 5x^2-2x+6? explain your answer.