Question

Solve for x. Round your answer to the nearest tenth if necessary.

Answer 1

x ≈ 11.1

Explanation:

using the cosine ratio in the right triangle

cos42° =
`(adjacent)/(hypotenuse)` =
`(x)/(15)` ( multiply both sides by 15 )

15 × cos42° = x , then

x ≈ 11.1 ( to the nearest tenth )