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15 December, 03:02

The function f (x) = 30 (1.4) x gives the number of bacteria in a science experiment, where x is the number of days after the start of the experiment. To the nearest whole number, how many bacteria will there be after 4 days?

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  1. 15 December, 03:26
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    115 bacteria

    Step-by-step explanation:

    The function that gives the number of bacteria in a science experiment is:

    f (x) = 30 (1.4) ^x

    Where x is the number of days

    After 4 days (x = 4), the number of bacteria will be:

    f (4) = 30 * (1.4) ^4

    f (4) = 39 * 3.8416

    f (4) = 115.248 = 115 (To the nearest whole number)

    The number of bacteria after 4 days is 115.
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