Afreight train travels at 30 mph. if the freight train is 300 miles ahead of an express train traveling at 55 mph, how long will the express train take to overtake the freight train? which equation could be used to find the number of miles the trains will travel? a. 30x = 55(x + 300) b. x÷30 = (x - 300)÷55 c. x÷30 = (x + 300)÷55

The answer is C. x÷30 = (x + 300)÷55

Step-by-step explanation:

(x3 + 6x2 + 2x - 6) • (x - 1)

step-by-step explanation:

polynomial long division :

3.2     polynomial long division

dividing :   x4+5x3-4x2-8x+6

                              ("dividend")

by         :     x-1     ("divisor")

dividend     x4   +   5x3   -   4x2   -   8x   +   6

- divisor   * x3     x4   -   x3            

remainder         6x3   -   4x2   -   8x   +   6

- divisor   * 6x2         6x3   -   6x2        

remainder             2x2   -   8x   +   6

- divisor   * 2x1             2x2   -   2x    

remainder               -   6x   +   6

- divisor   * -6x0               -   6x   +   6

remainder                     0

quotient :   x3+6x2+2x-6   remainder:   0

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3