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anonymous

  • one year ago

True or False If a number is negative, then its absolute value is never negative.

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  1. anonymous
    • one year ago
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    help pls

  2. anonymous
    • one year ago
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    True. Any numbers absolute value is that number times itself or squared. A negative times a negative is a positive and a positive times a positive is a positive

  3. anonymous
    • one year ago
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    can you help me with more?

  4. anonymous
    • one year ago
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    I can try

  5. anonymous
    • one year ago
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    x(x+5) and 2x+5x are equivalent expressions

  6. anonymous
    • one year ago
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    if false, we need to prove it by giving a counter example :/

  7. anonymous
    • one year ago
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    if you're unsure, i can post a different one, they are all true/false

  8. anonymous
    • one year ago
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    False.

  9. anonymous
    • one year ago
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    I'm trying to think of a counter example

  10. anonymous
    • one year ago
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    (-2)^4=-2^4

  11. anonymous
    • one year ago
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    i know this one is false, but can't find counter

  12. anonymous
    • one year ago
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    Actually i think that that one is true

  13. anonymous
    • one year ago
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    oops! nvm, it says prove it "OR" give a counter example, we can just prove it

  14. anonymous
    • one year ago
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    If a number is a rational number, then it is an interger

  15. anonymous
    • one year ago
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    For x(x+5) you can prove it because it is going to equal 2x+5

  16. anonymous
    • one year ago
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    ye i got that thx

  17. anonymous
    • one year ago
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    ok

  18. anonymous
    • one year ago
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    no its still false

  19. anonymous
    • one year ago
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    because it's equal to x^2+5x

  20. anonymous
    • one year ago
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    thats x*x, instead of 2*x

  21. anonymous
    • one year ago
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    yes ok you are right. but either way it is false and the actual answer is the proof

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