anonymous
  • anonymous
320.17 - (6101.4/1.8)
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Answer in proper significant figures.
anonymous
  • anonymous
ive tried to answer this four times and missed it all 4 times
anonymous
  • anonymous
missing something i guess

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anonymous
  • anonymous
yes i understand that
anonymous
  • anonymous
i know when i multiply I take the smallest amount of sig fig
anonymous
  • anonymous
and when i add or subtract i take the number of least certainty in common
anonymous
  • anonymous
its when i do both im getting confused
anonymous
  • anonymous
i assume i do the parenthesis first
anonymous
  • anonymous
which comes out to 3389.67
anonymous
  • anonymous
do i round that to two sig figs or subtract first?
anonymous
  • anonymous
so the first answer is 3400
anonymous
  • anonymous
then i take 302.17 - 3400
anonymous
  • anonymous
-3097.83 or 3098 in sig fig
anonymous
  • anonymous
well its supposed to be 320.17
anonymous
  • anonymous
so -3079.83 which would be 3080 in sig fig?
anonymous
  • anonymous
which i tried that answer and it marked me wrong >.<
anonymous
  • anonymous
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
anonymous
  • anonymous
yes but when you subtract dont you take the last significant decimal place to them both?
anonymous
  • anonymous
could you show me how you would solve this so i may understand?
anonymous
  • anonymous
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 >.<
anonymous
  • anonymous
yes i understand that
anonymous
  • anonymous
but here i divide first
anonymous
  • anonymous
which gives me two sig figs
anonymous
  • anonymous
33.89.67 = 3400 right?
anonymous
  • anonymous
3389.67 oops
anonymous
  • anonymous
then i take 320.17 and subtract 3400
anonymous
  • anonymous
since 3400 has no decimal spots i round to the nearest 1 spot
anonymous
  • anonymous
and that how i got 3080
anonymous
  • anonymous
oh so the two sig figs i get when dividing applies still after i subtract?
anonymous
  • anonymous
for some reason i thought when i rounded to 3400 i was done with the division part
anonymous
  • anonymous
but 3400 is ambiguous huh
anonymous
  • anonymous
still 2 figs
anonymous
  • anonymous
would it be 3100 or -3100?
anonymous
  • anonymous
you are my hero, thanks a lot!
anonymous
  • anonymous
most certainly did
anonymous
  • anonymous
now i have to do the other three parts of the question but at least I understand a little more
anonymous
  • anonymous
well i understand mult/div and add/subt.... a little confused when they use both together
anonymous
  • anonymous
my book sucks at explaining! and thanks for the pdf
anonymous
  • anonymous
well its a custom made book for my college made by pearson
anonymous
  • anonymous
Just says Chem 121 College of Southern Nevada
anonymous
  • anonymous
first solve the bracket and then do subtraction and finnaly the rules of significant.

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