X + y = 76
x - y = 20
------------add
2x = 96
x = 96/2
x = 48
x + y = 76
48 + y = 76
y = 76 - 48
y = 28
ur numbers are : 48 and 28
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°) = 