Answer:
x ≈ 14.6
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos40° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{x}{19}[/tex] ( multiply both sides by 19 )
19 × cos40° = x , then
x ≈ 14.6 ( to the nearest tenth )
