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°
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For the unit circle, the trig values are always the coordinates or their ratio as shown above, regardless of quadrant.
Can’t help you with this, we need either the picture of the graph or the formula for the graph
Answer:
It's 218, since 4 rounds below 5.
Step-by-step explanation: Please brainliest!
Answer:
18.0 km
Step-by-step explanation:
