The mean number of boxes of cookies sold by each girl scout in Emma's troop was 28 with a
standard deviation of 8. If Emma's Z-Score
was -1.5, how many boxes of cookies did she
sell?

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form

answer: haha (: i’ll go see what it is

step-by-step explanation:

1/4 is the answer if i recall correctly.