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Thread: Math term i can't remeber

  1. 11-23-2004, 06:17 PM #1
    Maarchk
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    Math term i can't remeber

    My prof. keeps saying the reciprocal of .7 is .3.
    I know thats wrong. the reciprocal of .7 is 1 over .7 which is a number greater then 1.

    what is the term for 1 - X where X is a decimal, so you get another decimal?

    Class lasts till 10 pm tonight, pac time.

    All help is appreciated.. I checked google and could not find it.

    Thanks,
    Mark
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  2. 11-23-2004, 06:31 PM #2
    InfiniteNothing
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    Sounds like a decimal compliment/suplement but I'm really just guessing.

    Unit compliment...
    Last edited by InfiniteNothing; 11-23-2004 at 06:54 PM.
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  3. 11-23-2004, 06:50 PM #3
    mcs328
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    uhm subtraction? x is a decimal. the result is a decimal. 1 - X = ?
    1 - 0.7 = 0.3

    I don't know. Where are the math nerds??
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  4. 11-23-2004, 07:08 PM #4
    zenbooty
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    I don't believe there is any special term for what you're decscribing. There is a term called the additive inverse which is basically -X, but that's not what you're describing. We can call it a Maarchkism from now on!
    Last edited by zenbooty; 11-23-2004 at 07:13 PM.
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  5. 11-23-2004, 08:38 PM #5
    GraingerGuy
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    Ummm...the reciprical of .7 is definately NOT .3.

    .7=7/10

    reciprical of that is 10/7 ~ 1.42

    .3 is just that

    and 1.42 and .3 do not equal here....
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  6. 11-23-2004, 08:46 PM #6
    gear02
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    Quote Originally Posted by Maarchk
    My prof. keeps saying the reciprocal of .7 is .3.
    I know thats wrong. the reciprocal of .7 is 1 over .7 which is a number greater then 1.

    what is the term for 1 - X where X is a decimal, so you get another decimal?

    Class lasts till 10 pm tonight, pac time.

    All help is appreciated.. I checked google and could not find it.

    Thanks,
    Mark
    Uh...what school is this...you might want to change schools if a COLLEGE prof can't get reciprocal right...
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  7. 11-23-2004, 08:59 PM #7
    Yossarian
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    call him on it before or after class. you probably aren't the only one who is confused by it
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