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  1. #1
    Junior Member
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    SAT math exponential

    SAT math question about Exponents

    I'd like to help me to the following sat math question

    Find the value of , given that .

    Thanks!!
    Last edited by sat math; 08-24-2013 at 08:43 AM.

  2. #2
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    SAT math exponentials

    SAT math Exponential

    First take a look to this revision notes about Exponents

    http://www.ibmaths4u.com/Exponential...20function.pdf

    Starting with

    square both sides

    and finally you get

    Hope these help!!

  3. #3
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    Thanks Elizabeth!!

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