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Math Help - scientific notation

  1. #1
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    scientific notation

    Okay I'm having a mental blank. What's 2.240^(x10^-0.3)? Is it 0.002240? lol. Thanks in advance.
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  2. #2
    Junior Member Serena's Girl's Avatar
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    That's correct. All you have to do is move the decimal point of 2.240 to the left 3 times (because the exponent of 10 is -3).

    If the exponent were positive, then move the decimal point to the right.
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  3. #3
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    Quote Originally Posted by brumby_3 View Post
    Okay I'm having a mental blank. What's 2.240^(x10^-0.3)? Is it 0.002240? lol. Thanks in advance.
    Do you mean 2.240*[10^(-0.3)]?

    If yes, then you cannot solve that mentally, or without a calculator.
    Because 10^(-0.3) = 0.50119 in my calculator.
    So, 2.24*[10^(-0.3)]
    = 2.24*[0.50119]
    = 1.12266
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  4. #4
    Junior Member Serena's Girl's Avatar
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    Yipes! I didn't notice that! My bad...
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