Answer:
.......C........
Step-by-step explanation:
......
I'm sorry I'm too lazy to read all of that. However, I did get the main point. The river was going at 3 mph. Since he wanted to travel 10 miles upstream and downstream, you would have to subtract 20 by 3. This would mean he was going at a speed of 17 mph.
Well, to solve, you would subtract 8 from both sides, which means x would end up equaling 32.
X=32
Answer:
<h2>2.2</h2>
Step-by-step explanation:
Use the cosine law (look at the picture).
We have:


→ look at the second picture

The answer for this would be b