Answer:
C) 5/13
Step-by-step explanation:
The mnemonic SOH CAH TOA reminds you that the cosine ratio is ...
Cos = Adjacent/Hypotenuse
For the given problem, this means ...
cos(B) = BC/BA = 15/39
cos(B) = 5/13
Answer:
13√2 is the answer in surd form
You divide 2.5 to both the miles and hours to get 1 hour and the miles remain.
The answer is 54 miles