Answer:
C.) 5.1
Step-by-step explanation:
First, <em>solve</em> for J's angle of degrees
180 - (120 + 40) = 20
Second, <em>fill in</em> <u>all the information</u> that you know <u>in the equation</u>
sin(20) / 2 and sin(120) / k
Third, <em>cross multiply</em>
k x sin(20) = 2 x sin(120)
Fourth, <em>solve for k</em>
k x sin(20) / sin(20) = [2 x sin(120)] / sin(20)
k = [2 x sin(120)] / sin(20)
k = 5.0641777.....
Fifth, <em>round </em>to the <u>nearest tenth</u>
k = 5.1