Consider the graph below, and identify the piecewise function that describes it. An image of a graph. Question 12 options: f(x)=⎧⎩⎨⎪⎪−x−22xx<33≤x≤6x>2⎫⎭ ⎬⎪⎪ f ( x ) = { − x x < 3 − 2 3 ≤ x ≤ 6 2 x x > 2 } f(x)=⎧⎩⎨⎪⎪−x−22x−11x≤33 2⎫⎭⎬⎪⎪ f ( x ) = { − x x < 3 − 2 x ≤ x ≤ 6 2 x − 11 x > 2 }

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.

arc length = radius * x ( in radians)

6 * pi = 18 * x

divide by 18 on each side

6 pi / 18 = x

pi/3 = x

the angle is pi / 3 radians

or   60 degrees