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?

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions. a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

Which shows the graph of the solution set of 3y – 2x > –18?

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?