Three of four numbers have a sum of 22. if the average of the four numbers is 8, what is the fourth number ?

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 value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12

Determine which postulate or theorem can be used to prove that lmn =nmo