Solve the system of equations below by graphing both equations with a pencil and paper? y=2x-4 y=-x+5

x = 9

y = 14

step-by-step explanation:

we have to solve the system of equations given as

y = 2x - )

y = x + 5 )

by equating the equations (1) and (2)

2x - 4 = x + 5

2x = x + 5 + 4

2x = x + 9

2x - x = 9

x = 9

by putting x = 9 in equation (1)

y = 2 × 9 - 4

  = 18 - 4

y = 14

we can calculate the value by graphing these equations.

the 4th choice is the correct one

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