Michael practiced batting and kept track of his hits. he missed 2 balls but hit 8 balls that were pitched to him. how many balls can michael predict to hit if he is pitched 20 balls?

Aparallelogram has two side lengths of 5 units. three of its sides have equations y = 0, y = 2, y = 2x. find the equation of the fourth side.

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.

Part a : solve - vp + 40 < 65 for v . part b : solve 7w - 3r = 15 for r show your work!