-3.375 or -3.4 or -3.38 all the same answer
To draw theta=-120° in the unit circle, we move clockwise 90°, then another 30°.
This means that we pass the fourth quadrant and stop in the third quadrant.
The reference angle of an angle theta in the third quadrant, is theta + 180°.
So the reference angle of -120° is -120°+180°=60°.
360° are 2π Radians
then 60° are 1/6 of 2π Radians = π/3 Radians
Answer: Reference angle is π/3 Radians
-7/9 is the slope of the 2 points
Answer: A) Kiloliters to liters
If the tank was say 1000 kiloliters, then that is equivalent to 1 liter according to the chart. We divide by 1000 to go from kiloliters to liters, which is the same as moving the decimal point 3 spots to the left.
