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Unformatted text preview: Measurments in Science - 8.14.18 asignificant figures a Significant figures in math operations 2 accuracy and precision aunits of Measurment Il units from other Units ( Density ) 2 Dimensional Analysis Significant figures - 8,13.18 1 ) Any zeros before the decimal don't count ( EX: 0. 0235 ) 3 significant figures 2 ) Any zeros in between numbers count ( EX: 10056 ) 5 significant figures 3 ) Any zeros after the decimal infront of numbers don't count ( EX: 0.000 22 ) 2 sig figs 4) Any zerosum behind a decimal count ( EX : 100.000 ) 4 significant figures 5 ) Any numbers to I - 9 are significant figures ( EX : 123 ) 3 significant figures 1 ) Trailing zeros without a decimal present are not significant figures ( EX: 100 ) 2 sig Significant Figures in Math Operations - 8.14.18 * Multiplying or Diriding - Limit the answer to the same # of significant figures that appear in the original data with fewest # of significant figures BK : 0 2. 34 - 1. 34 = 175 - 1.746 =1.75 @ 123 x4 = 700 ? 3 93# 24 = 0.48 - 01076 = 0.68 * Adding or Subtracting - limit the answer to the same of decimal places that appear in the original data with the fewest # of decimal places BK: @ 57.3 + 12. 4 = 09.9 (3) 2.0 + 3. 22 = 10. 2 1163 - 6.60 = 406...
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