Here are the graphs of the equations 3x+y=9 and 3x−y=9 on the same coordinate plane. Label each graph with the equation it represents.
Identify the region that represents the solution set to 3x+y≤9. Shade the region.
Identify the region that represents the solution set to 3x−y≤9. Shade the region with a different color.
Identify a point that is a solution to both 3x+y<9 and 3x−y<9. Label the point on the graph.
(Use Desmos)

is means division by fractions

step-by-step explanation:

the correct answer is d

hope this

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 would be 44.79

plz mark brainliest

step-by-step explanation: