Which equation correctly applies the law of cosines to solve
for an unknown angle measure?
72 = 82 + 112 – 2/8)(11) cos(n)
82 = 72 = 11-27(11) cos(m)
72 = 32 + 112-28) (11)cos(p)
82 = 72 + 112 -217 (11) cos(p)

The stem-and-leaf plot shows the heights in centimeters of teddy bear sunflowers grown in two different types of soil. soil a soil b 5 9 5 2 1 1 6 3 9 5 1 0 7 0 2 3 6 7 8 2 1 8 3 0 9 key: 9|6 means 69 key: 5|8 means 58 calculate the mean of each data set. calculate the mean absolute deviation (mad) of each data set. which set is more variable? how do you know?