Kudrey was making a box plot. He first plotted the least and greatest values. He then divided the distance into half, and then did this again for each half. What did Kudrey do wrong and what did his box plot look like?

Step-by-step explanation:

When creating a box plot, the 3 middle values are not found by dividing the distance between the max and min values and then dividing the distances in half again. The 3 middle values are found by finding the median of the set of values, the median of the first half of values, and the median of the last half of values. For example, if the data values were 2, 3, 3, 5, 8, 8, 9, 10, 11, the median is 8, the median of the first half is 3, and the median of the last half is 9. The points to plot to make the box plot are then 2, 3, 8, 9, and 11.

1.   already simplified

2.   foil the first two sets of parenthesis
(3-4i)(1+5i) = 3 + 15i -4i -20i^2 (i^2 = -1 so -20i^2 becomes + 20)
3 + 11i + 20 = 23 + 11i
now subtract (2-i) from 23 + 11i
23 + 11i   - 2 + i = 21 + 12i

3.   c = sqrt (a^2 + b^2)   square both sides
c^2 = a^2 + b^2
c^2 - a^2 = b^2
sqrt(c^2-a^2) = b