Question

HELPPPPP MEEE PLZZZZ!!!

Answer 1

You need the Law of Sines for this. In our case we have the measure of angle B and side b, we have the measure of angle A and are looking for side a, or x. Setting up the Law using our info, we have
`(x)/(sin(42)) = (9)/(sin(29))`. We will solve for x by multiplying both sides by sin(42):
`x= (9sin(42))/(sin(29))`, first choice above.