The number 0.80716 rounded to 3 significant figures isNumerical

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Significant Figures We use significant figures when reporting experiment results because we are only able to confidently quantify a measurement within their stated uncertainty range.  Anything beyond this range is uncertain and so we simply omit it!   Rules for handling significant figures: Significant figures start at the first non-zero digit (not from the decimal point). eg 0.000128 contains only 3 significant figures - the preceding zeroes do not get counted.  Zeroes in between non-zeroes count as significant figures eg 108 contains 3 significant figures Only include trailing zeros after a decimal point if they are included in the significant figure eg 0.12 to 4 significant figures equals 0.1200 - the zeros are required to show the value is accurately known to 4 significant figures. Always include trailing zeros before a decimal point to represent a placeholder eg 1,214 to 2 significant figures equals 1,200 - the zeros keep the 1 and 2 digits in their thousandth and hundredth place respectively.  If the zeroes were removed, the number would change to 12 which is a completely different number! Round down if the first insignificant number is 0-4 eg 524 to 2 significant figures rounds down to 520. Round up if the first insignificant number is 5-9 eg 0.0528 to 2 significant figures rounds up to 0.053. Question: What is 15.48 to 6 significant figures?

The number 0.45687 rounded to 3 significant figures is

The number 0.93337 rounded to 3 significant figures is

The number 0.22295 rounded to 3 significant figures is

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