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avatarCalmSwan8973
Secondary V • 1yr.
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Why is this 70 cm with sig figs? I thought it was supposed to be 73 cm... can someone help explain?

Chemistry
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  • Explanation from Alloprof

    Explanation from Alloprof

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      avatarRamzi Zteacher check
      Team Alloprof • 1yr.

      Hi !

      First, there is a link that I suggest you visit for the theory about significant figures :


      https://www.alloprof.qc.ca/en/students/vl/sciences/significant-figures-s1520


      So let us put them in meters first. You will then have the operation as follow :

      $$ 7,5m-6,774m=0,726m=0,7m $$

      You can see now that the answer must have only one significant figure.

      If you have any other questions, feel free to ask them !

    Québec RioTinto Desjardins Pathy TROTTIER OTHER
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