Answer:
3000,
Step-by-step explanation:
5 or above round up, 4 and below keep it the same
10 or 25 and a lot more pretty much anything that ends with 0 or 5
A point (-0.8, 0.6) will be a point on the unit circle in the second quadrant. Since it is a unit circle, its radius is 1, and we have
sin(α) = y = 0.6
cos(α) = x = -0.8
tan(α) = y/x = 0.6/-0.8 = -0.75
The angle is α = arccos(-0.8) ≈ 143.13°
______
For the unit circle, the trig values are always the coordinates or their ratio as shown above, regardless of quadrant.
Answer:
im taking the same test lol
Step-by-step explanation:
It is given in the question that
And 
can also be written as
Therefore,
That gives,
