APFIVE Frequency of a Sinusoidal Function
The water level in a harbor can be modeled by h(t) = 12 + 4cos(πt/6), where h is in feet and t is in hours since midnight. Based on data collected between consecutive high tides, what is the frequency of this sinusoidal function?
A
6/π cycles per hour
B
π/6 cycles per hour
C
12 cycles per hour
D
1/12 cycles per hour
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