The arc length is given by
.. s = rθ . . . . . . θ is the central angle in radians
.. = (8 in)*(35/180*π)
.. ≈ 4.9 in
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A disk 16 inches in diameter has a radius of 8 inches.
Remember that 16%=16/100=0.16
If it rains 16% of the time, out of 400 days...
400*0.16=64days
you can predict they'll get 64days of rain
Answer=64days
30+8*3=114 2y-6=56.... I think your answer would be 170 but I'm not completely sure
