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ChrisV

  • 3 years ago

320.17 - (6101.4/1.8)

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  1. ChrisV
    • 3 years ago
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    Answer in proper significant figures.

  2. ChrisV
    • 3 years ago
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    ive tried to answer this four times and missed it all 4 times

  3. ChrisV
    • 3 years ago
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    missing something i guess

  4. ChrisV
    • 3 years ago
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    yes i understand that

  5. ChrisV
    • 3 years ago
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    i know when i multiply I take the smallest amount of sig fig

  6. ChrisV
    • 3 years ago
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    and when i add or subtract i take the number of least certainty in common

  7. ChrisV
    • 3 years ago
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    its when i do both im getting confused

  8. ChrisV
    • 3 years ago
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    i assume i do the parenthesis first

  9. ChrisV
    • 3 years ago
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    which comes out to 3389.67

  10. ChrisV
    • 3 years ago
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    do i round that to two sig figs or subtract first?

  11. ChrisV
    • 3 years ago
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    so the first answer is 3400

  12. ChrisV
    • 3 years ago
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    then i take 302.17 - 3400

  13. ChrisV
    • 3 years ago
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    -3097.83 or 3098 in sig fig

  14. ChrisV
    • 3 years ago
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    well its supposed to be 320.17

  15. ChrisV
    • 3 years ago
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    so -3079.83 which would be 3080 in sig fig?

  16. ChrisV
    • 3 years ago
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    which i tried that answer and it marked me wrong >.<

  17. ChrisV
    • 3 years ago
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    Submitted Answers ANSWER 1: Deduction: -3% 320.17 - (6101.4/1.8) = -3069.50 ANSWER 2: Deduction: -3% 320.17 - (6101.4/1.8) = -3079.83 ANSWER 3: Deduction: -3% 320.17 - (6101.4/1.8) = -3080 ANSWER 4: Deduction: -3% 320.17 - (6101.4/1.8) = -3070

  18. ChrisV
    • 3 years ago
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    yes but when you subtract dont you take the last significant decimal place to them both?

  19. ChrisV
    • 3 years ago
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    could you show me how you would solve this so i may understand?

  20. ChrisV
    • 3 years ago
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    i swear to you im not trying to get anyone to do my homework, but this is frustrating me and i have two more attempts >.<

  21. ChrisV
    • 3 years ago
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    yes i understand that

  22. ChrisV
    • 3 years ago
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    but here i divide first

  23. ChrisV
    • 3 years ago
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    which gives me two sig figs

  24. ChrisV
    • 3 years ago
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    33.89.67 = 3400 right?

  25. ChrisV
    • 3 years ago
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    3389.67 oops

  26. ChrisV
    • 3 years ago
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    then i take 320.17 and subtract 3400

  27. ChrisV
    • 3 years ago
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    since 3400 has no decimal spots i round to the nearest 1 spot

  28. ChrisV
    • 3 years ago
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    and that how i got 3080

  29. ChrisV
    • 3 years ago
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    oh so the two sig figs i get when dividing applies still after i subtract?

  30. ChrisV
    • 3 years ago
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    for some reason i thought when i rounded to 3400 i was done with the division part

  31. ChrisV
    • 3 years ago
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    but 3400 is ambiguous huh

  32. ChrisV
    • 3 years ago
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    still 2 figs

  33. ChrisV
    • 3 years ago
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    would it be 3100 or -3100?

  34. ChrisV
    • 3 years ago
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    you are my hero, thanks a lot!

  35. ChrisV
    • 3 years ago
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    most certainly did

  36. ChrisV
    • 3 years ago
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    now i have to do the other three parts of the question but at least I understand a little more

  37. ChrisV
    • 3 years ago
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    well i understand mult/div and add/subt.... a little confused when they use both together

  38. ChrisV
    • 3 years ago
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    my book sucks at explaining! and thanks for the pdf

  39. ChrisV
    • 3 years ago
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    well its a custom made book for my college made by pearson

  40. ChrisV
    • 3 years ago
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    Just says Chem 121 College of Southern Nevada

  41. muhammad9t5
    • 3 years ago
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    first solve the bracket and then do subtraction and finnaly the rules of significant.

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