Question

Help please !!! I’m stuck on these problems

Answer 1

`b=6.8\ units`

Explanation:

we know that

Applying the law of sines in the triangle ABC

`(AB)/(sin(C))=(AC)/(sin(B))`

substitute the given values

`(15)/(sin(140\°))=(b)/(sin(17\°))`

Solve for b

`b=(sin(17\°))(15)/(sin(140\°))`

`b=6.8\ units`