Question

2. Solve for x. Round answer to the nearest tenth. *

Answer 1

x ≈ 7.4

Explanation:

Using the cosine ratio in the right triangle

cos22° =
`(adjacent)/(hypotenuse)` =
`(x)/(8)`

Multiply both sides by 8

8 × cos22° = x, thus

x ≈ 7.4 ( to the nearest tenth )