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12 votes
Trigonometry *find the value of x*

Trigonometry *find the value of x*-example-1
User Redge
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2 Answers

6 votes
6 votes


\cos(x) = (b)/(h) \\ \cos(x) = (4 .9)/(6.8) \\ \cos(x) = 0.720 \\ x = \cos^( - 1) (0.720) \\ x = 44 \degree

User Pete Fordham
by
3.2k points
9 votes
9 votes

Answer:

x ≈ 44°

Explanation:

We will use a trigonometry function to solve for x. We can see that we have values for the adjacent side and hypotenuse. This means we will be using cosine. Cosine is
(adjacent )/(hypotenuse)

cos(x) =
(adjacent )/(hypotenuse) [Given]

cos(x) =
(4.9)/(6.8) [Plug-in the values we have]

x ≈ 43.8969 [Find the inverse cosine function of both sides]

x ≈ 44° [Rounding to nearest degree]

User Maxrunner
by
3.5k points