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Solve for the value of X. Round to the nearest whole number.

Solve for the value of X. Round to the nearest whole number.-example-1
User Yftach
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1 Answer

3 votes

Answer:

x = 30º

Explanation:

This answer requires trigonometry, specifically, the cosine function. This is because we are given the length of the side adjacent to x and the length of the hypotenuse.

If you recall:


cos(x )= (adjacent)/(hypotenuse)

Therefore,


cos(x) = (13)/(35)

Now, we must use the inverse cosine function on a calculator to figure out the value of x.


cos^(-1)((13)/(15)) = 29.93

Now, we must round it to the nearest whole number, so x = 30º.

User Kramer Li
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