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    Exponential and Logarithmic Equations : Modeling

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    The number of trees per acre N of a certain species is approximated by the model

    N=68(10^-0.04x), 5 <_ x <_ 40 (<_ = less than or = to)

    Where x is the average diameter of the trees (in inches) three feet above the ground. Use the model to approximate the average diameter of the trees in a test plot when N=21.

    © BrainMass Inc. brainmass.com March 4, 2021, 5:48 pm ad1c9bdddf
    https://brainmass.com/math/basic-algebra/exponential-logarithmic-equations-modeling-11911

    Solution Preview

    To solve this problem, you want to know x when N=21. Thus your first step is to ...

    Solution Summary

    An exponential equation is used to model the average diameter of a group of trees.

    $2.49

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