Fi have a data set that overall is symmetric and i add a data point that is very high, what will happen to the mean? a) the mean will decrease. b) the mean will increase. c) the mean will be raised by one data point value. d) the mean will not change unless that data point was already in the data set.

B.

Step-by-step explanation:

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option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.