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Setsuna-Yuregeshi

  • one year ago

The specification for a length x is 43.6 cm with a tolerance of 0.1 cm. Write the specification as an absolute value inequality.

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  1. Setsuna-Yuregeshi
    • one year ago
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    I really need help, but on how to do it. Not just the answer please...

  2. Vocaloid
    • one year ago
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    hint: the absolute value of the difference between x and 43.6 is less than or equal to the tolerance

  3. Setsuna-Yuregeshi
    • one year ago
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    Um... So |x-43.6|<or= 43.7? @Vocaloid

  4. Vocaloid
    • one year ago
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    almost. what is the tolerance?

  5. Setsuna-Yuregeshi
    • one year ago
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    What does tolerance mean?

  6. Setsuna-Yuregeshi
    • one year ago
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    lol

  7. Setsuna-Yuregeshi
    • one year ago
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    I don't know :(

  8. Vocaloid
    • one year ago
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    "tolerance of 0.1" means that the value of x will be no more than 43.6 + 0.1, and no less than 43.6 - 0.1 basically, the tolerance gives you an upper bound and a lower bound for the possible x values

  9. Vocaloid
    • one year ago
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    so our inequality is |x - 43.6| <= 0.1

  10. Setsuna-Yuregeshi
    • one year ago
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    eh?

  11. Setsuna-Yuregeshi
    • one year ago
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    How come?

  12. Vocaloid
    • one year ago
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    think about what this statement means |x - 43.6| <= 0.1 |x - 43.6| represents the distance between x and 43.6. the inequality means that x will be no more than 0.1 units away from 43.6

  13. Vocaloid
    • one year ago
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    |dw:1443822176291:dw|

  14. Setsuna-Yuregeshi
    • one year ago
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    Ooh,

  15. Vocaloid
    • one year ago
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    |dw:1443822217532:dw|

  16. Setsuna-Yuregeshi
    • one year ago
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    because x has to be either 43.6 or .1+ or - 43.6. The tolerance means it has to be in that range??

  17. Setsuna-Yuregeshi
    • one year ago
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    @Vocaloid

  18. Vocaloid
    • one year ago
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    uh... not quite

  19. Vocaloid
    • one year ago
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    "tolerance of 0.1" means that the maximum value of x is 43.6 + 0.1 = 43.7 the minimum value of x is 43.6 - 0.1 = 43.5 that's why "0.1" is the tolerance value

  20. Setsuna-Yuregeshi
    • one year ago
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    ooh, ok thanks! @Vocaloid

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