What is the value of x
(X+40) (3x)
A. 20
B. 35
C. 60
D. 70

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.

Is it greater than or less than7*3_9*2

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.