Answers: a =
, b = (0, -1), c = C, d = 0
<u>Explanation:</u>
a) Add 2π
until you get a positive value.
+
=
, which is located on the y-axis at 270°
b) Look at the Unit Circle to find the coordinates of
= (0, -1)
c) cot =
= 
d)
=
= 0
*****************************************************************************
Answer: 471.24
<u>Explanation:</u>
angular speed (w) =
= 4π radians/hour
linear speed (v) = r * w
= 
= 150π meters/hour
≈ 471.24 meters/hour
Answer:
b) 123
Step-by-step explanation:
The answer would be 309! I hope this helps!