To determine expected frequency, calculate A. theoretical probability times number of trials
B. number of trials divided by theoretical probability
C. theoretical probability divided by number of trials
D. theoretical probability plus number of trials
Please help me asap

(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

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled