Solve by completing the square with working out

-6x-x^2-8

-6x-x^2-8 = -(x+2) x (x+4)

(This is if you are factoring the expression)

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.

$9.41

step-by-step explanation: