You need to use the law of cosine:
B^2 = A^2 + C^2 - 2ACcos(b)
55^2 = 90^2 + 50^2 - 2(50)(90)cos(b)
0.841666 = cos(b)
b = 32.68
Answer:
42.5%
Step-by-step explanation:
A in how many ways can four people be selected from this group of eleven?
Answer:
The answer is 9/4
Step-by-step explanation:
