9. Find the length of the arc shown in brown. Leave your answer in terms of 2 (1 point)
4pi in.
8pi ft
16pi in.
48pi in.

The length of the arc is 4π.

Step-by-step explanation:

Given,

Arc length = ∅/360° (2πr)

⇒ 60°/360° (2π12)

⇒ 24π/6

⇒ 4π

∴ The length of the arc is 4π.

y = 5x + 17

step-by-step explanation:

a perpendicular line will be the opposite reciprocal slope of the given equation.   the slope given is -1/5 so the opposite reciprocal is 5

find b:

7 = 5 (-2) + b

7 = -10 + b

17 = b

write equation

y = 5x + 17