Answer:
Can you put this in different words so we can understand how to help you better
Step-by-step explanation:
The answer is 18…………………..
Using a trigonometric identity, the cosine of the angle is given as follows:
<h3>What is the trigonometric identity that relates the sine and the cosine of an angle?</h3>
It is given by:
In this problem, the sine is:
Then:
On quadrant I, the cosine is positive, hence:
More can be learned about trigonometric identities at brainly.com/question/24496175
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2y+4=6
First, subtract the 4 from both sides:
2y+4-4=6-4
Simplify:
2y=2
Divide both sides by 2:
y=1