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15 September, 18:30

The population (in millions) of a certain country can be approximated using the following function; P (x) = 40 (1.02) ^x where x is the number of years after 2000. which of the following calculations will tell you what the population can be expected to reach 200 million?

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  1. 15 September, 19:16
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    200=40 (1.02^x)

    5=1.02^x

    ln5=xln1.02

    x=ln5/ln1.02

    x≈81.27 (so during the year 2081)
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