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Anna71 [15]
3 years ago
12

20 points. Round off x to the nearest tenth.

Mathematics
2 answers:
denis-greek [22]3 years ago
8 0
I5.3

Hope this helps
Valentin [98]3 years ago
3 0

Answer:

x=15.3

Step-by-step explanation:

In right triangles only:

The sine of an angle is equal to its opposite side divided by the hypotenuse. (o/h)

The cosine of an angle is equal to its adjacent side divided by the hypotenuse. (a/h)

The tangent of an angle is equal to its opposite side divided by its adjacent side. (o/a)

Therefore, we have the following equation:

\sin 58^{\circ}=\frac{x}{18},\\x=18\sin 58^{\circ}\approx \boxed{15.3}

Alternative:

\cos 32^{\circ}=\frac{x}{18},\\x=18\cos32^{\circ}\approx \boxed{15.3}

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