Answer:
150 people
Step-by-step explanation:
20/50 = 40%
So 40% are wearing hats and 60% aren't
0.6=60%
250x0.6= 150
Answer:
Option C
Step-by-step explanation:
By applying cosine rule in the given triangle,
BC² = AB² + AC² - 2(AB)(AC)cosA
(11)² = 8² + 7² - 2(8)(7)cosx
121 = 64 + 49 - 112cos(x)
cos(x) = -![\frac{8}{112}](https://tex.z-dn.net/?f=%5Cfrac%7B8%7D%7B112%7D)
x = ![\text{cos}^{-1}(-\frac{1}{14})](https://tex.z-dn.net/?f=%5Ctext%7Bcos%7D%5E%7B-1%7D%28-%5Cfrac%7B1%7D%7B14%7D%29)
x = 94.1°
Therefore, Option C will be the correct option.