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anonymous

  • one year ago

Check answers? Use natural logarithms to solve the equation. e^2x = 1.4 Round to the nearest thousandth. I have 0.168 Solve ln (3x – 6) = 4. Round to the nearest thousandth. I got 20.199 after rounding Solve ln (2x + 3) = 7 Round to the nearest thousandth. I have 546.817 after rounding

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  1. ganeshie8
    • one year ago
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    just use the definition of logarithm : \[\large e^{x}=b \implies x = \ln (b)\]

  2. ganeshie8
    • one year ago
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    exponent = logarithm

  3. ganeshie8
    • one year ago
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    In your first question, you have : \(\large e^{2x} = 1.4 \) therefore \(2x\) is the logarithm of \(1.4\). using math symbols we write it as : \[\large 2x = \ln (1.4)\]

  4. anonymous
    • one year ago
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    oh so that one was right then thanks

  5. ganeshie8
    • one year ago
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    oh you have the answer already, one sec let me check

  6. ganeshie8
    • one year ago
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    0.168 is correct for the first question http://www.wolframalpha.com/input/?i=ln%281.4%29%2F2

  7. ganeshie8
    • one year ago
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    all your answers are correct, good job!

  8. anonymous
    • one year ago
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    thank you for checking I appreciate it. Wasn't sure how I could do that. :)

  9. ganeshie8
    • one year ago
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    np:)

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