Answer:
<h2>x = 5, y = -4 → (5, -4)</h2>Step-by-step explanation:
A ship travels due north for 100 miles from point C to point A. From point A the ship travels to point B at 60° east of north. F
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Given:
In triangle .
To find:
The measure of angle C.
Solution:
We have, . It means
.
According to the law of cosines:
Taking cos inverse on both sides, we get
Therefore, the correct option is C.