Which of the following best describes the solution to the system of equations below?

4x + 6y = 7
12x + 18y = 21

Infinate solutions

Step-by-step explanation:

You’d use elimination

so you’d want to get either the x values to be the same or the y values so in this case we can multiply the top equation (4x + 6y=7) by 3 and then subtract the two equations so, 3(4x+6y=7) = 12x + 18y = 21 which is the same as the other equation meaning If you subtract the two you get 0=0 which leaves you with infinite solutions.

(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

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify