What is the third quartile of this data set? 20, 21, 24, 25, 28, 29, 35, 37, 39, 42, 44
A. 24
B. 44
C. 29
O D. 39
SU

D

Step-by-step explanation:

First find the median of the data set

The median is the middle value of the data in ascending order

20,  21,  24,  25,  28,  29,  35,  37,  39,  42,  44

                                      ↑ median = 29

The third quartile is the middle value of the data to the right of the median

35,  37,  39,  42,  44

               ↑ third quartile

The third quartile of the data set is 39

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)