Using data for population in the district of columbia, write an exponential model of the form a ∙ bx to estimate this population in the years after 2005.

a.) a ∙ bx = (550,521)(0.993)x

b.) a ∙ bx = (550,521)(0.990)x

c.) a ∙ bx = (550,521)(0.992)x

d.) a ∙ bx = (550,521)(0.991)x

The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. last year there were 63 inches of snow. find the number of standard deviations from the mean that is, rounded to two decimal places. 0.44 standard deviations below the mean 2.50 standard deviations below the mean 0.44 standard deviations above the mean 2.50 standard deviations above the mean

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct

Solve the inequaliy: (x^2+2)(x−2)^2(6−2x)> 0