Hi:) anyone able to help & explain how to do this? Thank you so much!

Step-by-step explanation:

6x^4-8x^3+3x^2+4x-1=(2x^2-4x+3)Q(x)+R(x)

                                    =(2x^2-4x+3)(3x^2+2x+1)+(2x-4)

Q(x)=3x^2+2x+1

R(x)=2x-4

6x^4 - 8x^3  +3x^2+4x-1      |  2x^2-4x+3

-6x^4+12x^3 -9x^2                   3x^2+2x+1

/           4x^3 -6x^2+4x-1

           -4x^3+8x^2-6x

              /    2x^2- 2x -1

                 -2x^2+ 4x  -3

                     /        2x -4

(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