3/4 = a/36 what is a?

In the past, professional baseball was played at the astrodome in houston, texas. the astrodome has a maximum height of 63.4 m. the height of a baseball t seconds after it is hit straight up in the air with a velocity of 45 ft/s is given by h = -9.8t2 + 45t + 1. will a baseball hit straight up with this velocity hit the roof of the astrodome? use the discriminant to explain your answer.

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

Which point lies on a circle with a radius of 5 units and center at p(6, 1)?