Answer:

Step-by-step explanation:
300 degrees is in the fourth quadrant (it's between 270 and 360); sine is negative in the fourth quadrant.
Given we're in the fourth quadrant, the reference angle is 360 - 300 = 60 degrees
sin(60°) =
And since sine is negative, this value turns negative:
sin(300°) = 
Answer:
for the first question, it's (2,2) and for the last question it's (0,2)
Answer:
Step-by-step explanation:
6) 15 + 2x = 75 Check: 15 + 2x = 75
2x = 75 - 15 15 + 2*30 = 75
2x = 60 15 + 60 = 75
x = 60/2 75 = 75
x = 30
7) m/3 - 14 = 10
m/3= 10 + 14
m/3 = 24
m = 24 *3
m = 72