Which matrix represents the system of equations shown below? 6x + 11y = -4
5x-9y = 1
-4
A.
6 -11
-5 -9
1
B.
6 11 -41
-5 -9 1
O
-11
-9
-1)
1
-4
11
5 -9

6, 11, -4

5, -9, 1

Step-by-step explanation:

(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

a is the correct