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Scientific Notation and Significant Figures
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Scientific notation shows the number of place-holder zeroes as the exponent of 10, and leaves all significant digits in the coefficient. Therefore when a number is in scientific notation, all the digits in the coefficient are significant. Examples:
2.001x 107       7.54x 10-12       3x 1015
4 sig figs
3 sig figs
1 sig figs
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