Question

How do I find the x and how do I round it to the nearest tenth?

Answer 1

x = 19.5 ( to the nearest tenth )

Explanation:

Since the triangle is right, we can use the cosine ratio to find x

cos46° =
`(adjacent)/(hypotenuse)` =
`(x)/(28)`

multiply both sides by 28

x = 28 × cos46° = 19.450 ≈ 19.5