Answer: 
Step-by-step explanation:
According to the cosine rule

Here, 
Putting values

So, the ship turns by
north of west
Answer:
1. 570
2. 5,700
3. 57,000
Step-by-step explanation:
Hope it helped
Step-by-step explanation:
Given

Want it exact? Here it is:499.243083(got it from my calculator), if rounded, then here it is:500
I don’t know I don’t have the smarts for that lol