An online retailer allows customers to rate items on a scale from −5 to 5. An item receives the scores below. −3.5, 4, 4.5, −5.25, −4, −3.25, −4.25, 1.75 Find the mean score. Write your answer as a decimal.

The mean rate given by customer is -1.25

Step-by-step explanation:

We are given the following in the question:

-3.5, 4, 4.5, -5.25, -4, -3.25, -4.25, 1.75

Formula:

Putting values, we get,

Thus, the mean rate given by customer is -1.25

(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

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step-by-step explanation: