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sineoko [7]
2 years ago
11

Option 1: Find x. Show all work.

Mathematics
2 answers:
Ronch [10]2 years ago
5 0

Using law of cosines:

Cos(angle) = adjacent/ hypotenuse


Cos(22) = 12/x

Rewrite to get:

X = 12/cos(22)

Simplify:

X = 12.9424

Round the answer as needed.

Zielflug [23.3K]2 years ago
3 0

\\ \tt\Rrightarrow cos\theta=\dfrac{Base}{Hypotenuse}

\\ \tt\Rrightarrow cos22=\dfrac{12}{x}

\\ \tt\Rrightarrow 12=xcos22

\\ \tt\Rrightarrow 12=0.92x

\\ \tt\Rrightarrow x=12/0.92

\\ \tt\Rrightarrow x=13.04

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