A submarine was situated 600 feet below sea level. An airplane directly above is at a height of 8,500 feet.
1 answer:
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Answer:
Step-by-step explanation:
Given
Required
Determine an equivalent expression
In trigonometry:
In
Substitute for
in
Hence, the equivalent expression is:
The measure of angle J is 19.8°, and the correct option is D.
<h3>What is the formula of cosine?</h3>The law of cosine or cosine rule in trigonometry is a relation between the side and the angles of a triangle. Suppose a triangle with sides a, b, c and with angles cosC.
The following formula is used to find the angle j is;
Triangle HIJ has side lengths h=12, i = 17, j = 7.
Substitute all the values in the formula;
Hence, the measure of angle J is 19.8°, and the correct option is D.
Learn more about law cosine here;
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