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precalculus

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A bacteria culture initially contains 1500 bacteria and doubles every half hour.


a) Find an expression for the number of bacteria after t hours.
Q(t)=



b) The number of bacteria after 20 minutes is (the answer must be an integer)


c) The number of bacteria after 9 hours is

  • precalculus -

    (a) 1500*2^(t/0.5) = 1500*2^(2t)
    (b) 1500*2^(2*20/60) = ?
    (c) 1500*2^(2*9) = ?

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