1. What is the radius of the red circle? 2. What is the radius of the blue circle?

3. What are the coordinates for the center of the red circle?

4. What are the coordinates for the center of the blue circle?

5. What is the equation for the red circle?

6. What is the equation for the blue circle?

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7

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.