Which expression is equivalent to the following complex fraction?

B

Step-by-step explanation:

Simplify the numerator and denominator of the fraction, that is

-

Multiply the numerator/denominator of the first fraction by y

Multiply the numerator/denominator of the second fraction by x

-

=

Similarly

+

Multiply numerator/denominator of the first fraction by x

Multiply numerator/denominator of second fraction by y

+

=

To perform the division

leave the fraction on the numerator

Change division to multiplication

Turn the fraction on the denominator upside down, thus

×

Cancel xy on the numerator and denominator

= ← factor 2 out of each term on the numerator

= → B

(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

c

step-by-step explanation:

it would be see because your formula is f(x)=6x, so 6 times 1 is 6 and you go on and the best answer is c.