Question

what are signaficant figures

Answer 1

Significant figures are critical when reporting scientific data because they give the reader an idea of how well you could actually measure/report your data. Before looking at a few examples, let's summarize the rules for significant figures.

1) ALL non-zero numbers (1,2,3,4,5,6,7,8,9) are ALWAYS significant. 2) ALL zeroes between non-zero numbers are ALWAYS significant. 3) ALL zeroes which are SIMULTANEOUSLY to the right of the decimal point AND at the end of the number are ALWAYS significant. 4) ALL zeroes which are to the left of a written decimal point and are in a number >= 10 are ALWAYS significant.A helpful way to check rules 3 and 4 is to write the number in scientific notation. If you can/must get rid of the zeroes, then they are NOT significant

Answer 2

http://tournas.rice.edu/website/documents/SignificantFigureRules1.pdf

Answer 3

For example if u divide 98/78 u'll get 1.256410256
so u can round it off to 3 SIGNIFICANT FIGURES OR to 4 if u did so u'll get 1.26 or 1.256 this is bcuz if u r rounding to 3 SF's u must see the next digit of the third digit from the left side and if the the 4th digit is
≥
to 5 then u'll change ur digit suppose 1.256410256 =>1.256 to 4SF's bcuz the fifth digit is lesser than 5

Answer 4

i hope this helps u

Answer 5

if not then u can check the link above

Answer 6

Thank you both