Y=-2/3x+4 in standard form

3y+2x=12

Step-by-step explanation:

To write this equation is standard form, you need to make sure then the denominator for all variables or numbers is 1

To do so, you have to multiply 3 to the equation:

This equals -2x+12=3y

Now, you need to make sure that the variables are to one side

To do so add 2x to both sides

-2x + 12 = 3y

+2x           +2x

Now you have

3y+2x=12

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

the answer is:

mean: 6

mad: 2.14