1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Sig figs and qualitative v quantitative

  1. Sep 19, 2010 #1
    Hi, if an equation has parentheses attached, do you solve what is inside and then look at this sig figs to tell you the amount in the answer or not? For example, if I had (0.3991 - .02) / 100. would the answer have 1 significant figure (the .02).


    I also had a question with quantitative vs qualitative measurements. Would anything with a number attached be considered quantitative? Would quantitative be saying that for example, carbon makes up X% of the body would as well as maybe carbon's atomic mass is also quantitative? And a qualitative would be smell, color etc.?

    Thanks
     
  2. jcsd
  3. Sep 19, 2010 #2

    Borek

    User Avatar

    Staff: Mentor

    Parentheses are not important here, what is more important is the fact that sigfig rules for addition and subtraction are a little bit different.

    Qualitative measurement?
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook