Two cars leave the same place at the same time. The first drives in a straight line in N 50o W at 50 miles per hour and the second drives in a straight line N 50o E at the 45 miles per hour. After 1 hour, how far apart ar the cars to the nearest mile?

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.

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.

Which expression is a perfect cube? a. x8 b. y24 c. m28 d. x64