The mass of nickels is 5.00 g, 5.00 g, 5.02 g, 5.01 g, 4.99 g, 5.01 g, 5.00 g, 4.98 g, 3.75 g, 5.00 g, 4.99 g, 5.02 g, 5.01 g. Remove the outlier and determine the change in the standard
deviation of the mass of the nickels.

answer: 193

explanation:

200-7 = 193

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.