Question

20 points.

Round off x to the nearest tenth.

Answer 1

I5.3

Hope this helps

Answer 2

`x=15.3`

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)=(x)/(18),\\x=18\sin 58^(\circ)\approx \boxed{15.3}`

Alternative:

`\cos 32^(\circ)=(x)/(18),\\x=18\cos32^(\circ)\approx \boxed{15.3}`