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determine whether y varies directly with x. if so, find the constant of variation k and write the equation.

x y
7 11
8 13
9 15
10 17

Not a direct variation

Step-by-step explanation:

The formula for direct variation is

y =kx

Rewriting

y/x =k

Substituting points in

11/7 =k =1.571428

13/8 =k =1.625

Since the values of k are not equal, this is not a direct variation

(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

5.25 ounces

step-by-step explanation:

divided 3/4 and 6