Using the Law of Sine or Cosine, solve for the unknown variable (round to the
nearest tenth)

HELP QUICK PLEASE

Law of Sines always came easier to me since it was just simple cross multiplication.

The formula consists of a/sinA=b/sinB=c/sinC.

However, this one cannot be used for Law of Sines because one more angle isn't given. So off we go to Law of Cosines.

This one is simpler. The formula is  c^2 = a^2 + b^2 − 2ab cos(C)

This one is easier to do. Let's designate all sides a variable. Let's just say 47 is a, 56 is b, and c is x.

Let's fill in the numbers

c^2=47^2+56^2-2(47)(56)cos124

c^2=2209+3136-(5264cos124)

c^2=5245-(-2895.2)

c^2=5245+2895.2

c=90.22

answer: 1,380

step-by-step explanation:

1: you turn %15 into a decimal by moving the decimal point two places to the left.

2: and then you multiply .15 by 1,200 , which will get you 180.00

3: from there you will add 180 to 1,200

4: which will get you 1,380

hope it *im kind of slow so idk if my answer is right*