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ikshjbdckoj

  • 2 years ago

Simplify. Write in scientific notation. (9 × 10^–3)^2

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  1. Zelda
    • 2 years ago
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    12345.67901 or in scientific, it is equal to: 1.234567901*10^5

  2. ikshjbdckoj
    • 2 years ago
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    were did all those numbers come from??

  3. ikshjbdckoj
    • 2 years ago
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    is it 8.1 x 10^-5

  4. Zelda
    • 2 years ago
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    Sorry, i read that as a -2 in the end, and yea, what you got is right.

  5. ikshjbdckoj
    • 2 years ago
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    okay good :) now here is the most hard one.\[Evaluate \frac{ 1 }{ 2} a ^{-4} b ^{2} for a = –2 and b = 4.\]

  6. Zelda
    • 2 years ago
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    What did I say about using the equation editor? Math ONLY. Anyhow, just plug in for the calculator and you get: \[-.2\] or \[-\frac{ 1 }{ 5 }\]

  7. ikshjbdckoj
    • 2 years ago
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    neither of those are my options. 2 \[\frac{ 1 }{ 2 }\] 3 4

  8. Zelda
    • 2 years ago
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    Hmm, can I see the original question then? Like a pic?

  9. Zelda
    • 2 years ago
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    Actually, I see. Your writing messed me up again. It should be 1/2.

  10. ikshjbdckoj
    • 2 years ago
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    8. Is the following statement always, never, or sometimes true? A number raised to a negative exponent is negative. always never sometimes

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