PD=10 CL=? What is the answer

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.

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3