Anything except pi is a rational number. So 9 and 7/10 is one or it could be a whole number
Answer:
939,520 would be the answer. You're rounding the 15 part up to the next ten which would be 20, making the answer 939,520.
Answer:
picture too bad sorry
Step-by-step explanation:
Answer:
h≈2.12
Radius =9
volume = 180
Step-by-step explanation:
h=3V / πr2=3· 180 / π·9^2 ≈ 2.12207
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.
