Given vector = -6i + 2j, find the direction of . 71.57 degrees
-108.43 degrees
-71.57degrees
108.43 degrees

b or 2, just plug these equations into your graphing calculator then check the graph to see the image. if it matches up then that's your answer!

true !

step-by-step explanation:

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.