A culture of 200 bacteria growing in a Petri dish doubles in size every 3 hours.  The number of bacteria, A, can be modeled by the exponential equation A=P(2) t/3, where P is the initial amount and t is the time in hours. How many hours will it take for the number of bacteria to reach 1,000,000?  round to the nearest whole number (blank) hours

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A: Please refer to the image below

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A: Here x = -1/4

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