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anonymous

  • one year ago

i have a question

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  1. anonymous
    • one year ago
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    http://gyazo.com/b99f8d636b9355b7f990f7bead1d297f

  2. anonymous
    • one year ago
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    @UsukiDoll @phi @welshfella

  3. Vocaloid
    • one year ago
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    hint: A^B * A^C = A^(B+C)

  4. Vocaloid
    • one year ago
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    (add the exponents, keep the base)

  5. UsukiDoll
    • one year ago
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    The second one seems easier ... @Vocaloid explained it well :)

  6. anonymous
    • one year ago
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    i did it think its a

  7. Vocaloid
    • one year ago
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    another hint for the first question: A^B/A^C = A^(B-C)

  8. anonymous
    • one year ago
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    i really dont know what that means at all

  9. Vocaloid
    • one year ago
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    |dw:1436966626304:dw| simplify all your answer choices and see which one matches the question

  10. phi
    • one year ago
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    remember that \( 9^2 \) means \( 9 \cdot 9\) and \(9^6 \) means \( 9 \cdot 9\cdot 9\cdot 9\cdot 9\cdot 9\) and when you multiply them you get \( 9 \cdot 9 \cdot 9 \cdot 9\cdot 9\cdot 9\cdot 9\cdot 9\) and you can use the "short way" by writing 9 with what as the little number in the upper right ? (to find the number, count the number of nines)

  11. anonymous
    • one year ago
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    im not getting anything that's the answer

  12. anonymous
    • one year ago
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    the first one give me=56 second=4 third=20 fourth=0

  13. phi
    • one year ago
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    Do you know how to write \[ 9 \cdot 9 \cdot 9 \cdot 9\cdot 9\cdot 9\cdot 9\cdot 9 \] using 9 with a little number in the upper right ?

  14. anonymous
    • one year ago
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    so those are the answers you get to choose from right

  15. anonymous
    • one year ago
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    you know 56 4 20 0

  16. phi
    • one year ago
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    to answer this question, you need to learn what the exponent (little number in the upper right) means examples: \[ 9^1 = 9 \\ 9^2 = 9 \cdot 9 \\ 9^3= 9 \cdot 9 \cdot 9 \] do you get that idea ? the little number tells you how many times 9 is multiplied by itself

  17. anonymous
    • one year ago
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    right exactly

  18. anonymous
    • one year ago
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    yes I did it

  19. phi
    • one year ago
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    they start with \[ 9^2 \cdot 9^6 \] if we change to the "long way" to write that, it is \[ 9 \cdot 9 \ \cdot \ 9 \cdot 9\cdot 9\cdot 9\cdot 9\cdot 9 \]

  20. phi
    • one year ago
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    now change the "long way" to the short way. Can you do that for \[ 9 \cdot 9 \cdot 9 \cdot 9\cdot 9\cdot 9\cdot 9\cdot 9 \] ?

  21. anonymous
    • one year ago
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    yes

  22. Astrophysics
    • one year ago
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    \[\huge x^n \times x^m \implies x^{n+m}\] \[\huge \frac{ x^n }{ x^m } = x^{n-m}\] I think that's more clear now.

  23. anonymous
    • one year ago
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    not really am I right its a

  24. Astrophysics
    • one year ago
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    For example \[\huge 5^6 \times 5^9 \implies 5^{6+9} = 5^{14}\]

  25. anonymous
    • one year ago
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    oj thx

  26. Astrophysics
    • one year ago
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    Np

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