what’s the answer ?

Answer:
3.76
Step-by-step explanation:
Use sin(70°)=[tex]\frac{x}{4}[/tex] because sinx=[tex]\frac{opposite}{adjacent}[/tex]
Then isolate x by multipling 4 to both side of the equation.
Use caluclator and plug in 4*sin(70), which is 3.75877,