find the length of the missing side

Answer:
9.64 units
Step-by-step explanation:
[tex] \sin \: 40 \degree = \frac{x}{15} \\ \\ x = 15 \sin \: 40 \degree \\ \\ x = 9.6418141453 \\ \\ x = 9.64 \: units[/tex]
Answer:
10
Step-by-step explanation:
SOHCAHTOA
sine is relevant
sin 40=x/15
Ans=10