Which equation correctly applies the law of cosines to solve for an unknown angle measure?

Which equation correctly applies the law of cosines to solve for an unknown angle measure?

82 = 72 + 112 – 2(7)(11)cos(P) aka D

Step-by-step explanation:

I got this right on edg for Geometry 1C-2 :p

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47