Answer:
<h2>61°</h2>
Step-by-step explanation:
Use the sine law:

We have:

Substitute:
<em>cross multiply</em>

<em>divide both sides by 6</em>

Answer:
19
Step-by-step explanation:

We have been given that the upstream speed is
and the down stream speed is
.
Let the fisherman traveled a distance of x miles.
The total time of the trip is 6 hours.
Relations between speed (s), time (t) and distance (d) is 
Hence, 
Time upstream + time downstream = 6

lcm = 10

=> 
Cross multiplying, 
x = 20 miles .. Answer.
The answer answer is 42. 8
Answer:
y = 314
Step-by-step explanation:
y = 650 - 16x
y = 650 - 16(21)
y = 650 - 336
y = 314