as the tides change,the water level in a bay varies sinusoid
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as the tides change,the water level in a bay varies sinusoidally.at high tide today,at 8am,the water level was 15feet; at low tide,6hours later at 2pm,it was 3 feet.how fast,in feet per hour,was the level dropping at noon today
A 3 B pai(3)^(1/2)/2 C 3(3)^(1/2) D pai*(3)^(1/2) E 6(3)^(1/2)
A 3 B pai(3)^(1/2)/2 C 3(3)^(1/2) D pai*(3)^(1/2) E 6(3)^(1/2)
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