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Prof. Dumbledore is concerned that Harry, Ron and a few other students are still having some...

Prof. Dumbledore is concerned that Harry, Ron and a few other students are still having some difficulties with significant figures. Hermione seems to have gotten it though. Why don’t we try to review them. How many significant figures does the result of the following expression have? (6.635-1.321)*(1747.4)*(3.54-2.6).

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(6.635 -1.321) x 1747.4x (3.54-2-6) 2 5.314 1747.ux Long 3.54 and 2.66 in 2-6 there is only 28357.115 tn.al 1 dight after the first decimal place 283571 [The answer must also contain one digit after the decimal place only as it's the limiting condition] The result contains 5 significant figures

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