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anonymous

  • 5 years ago

ok I am using webassign as the math program for algebra class, and it seems whatever answer I put it it says its wrong. so try this problem for me though, its rational exponents. b^1/4 over b^5/4

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  1. amistre64
    • 5 years ago
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    1 -------- b^(5-1/4) 1/b

  2. anonymous
    • 5 years ago
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    I got -1..that must be wrong

  3. amistre64
    • 5 years ago
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    b^(1/4) 1 1 ------- = ----------- = ------- = 1/b^1 = 1/b b^(5/4) b^[(5-1)/4] b^(4/4)

  4. amistre64
    • 5 years ago
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    1/b and b^(-1) are the same thing; but many programs dont want a -exponent

  5. anonymous
    • 5 years ago
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    Yeah I can see that now. Thank you soo much for explaining.

  6. amistre64
    • 5 years ago
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    youre welcome :)

  7. amistre64
    • 5 years ago
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    whenever you have a -exp...put it to the other side of the fraction bar and change it to +

  8. amistre64
    • 5 years ago
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    like this: b^-2 1 ---- = --- 1 b^2

  9. anonymous
    • 5 years ago
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    okay thank you I did 1/b as the answer and it liked it.

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