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How many significant figures are in each of the following
measurements?
a) 28.6 g
3 since all nonzero digits are significant
b) 3440. cm
4 The decimal point to the right of the zero makes the zero
significant.
c) 910 m
3 No decimal point to the right of the zero indicates the zero is
not significant. Zeroes to the right of the last nonzero digit but to
the left of an understood decimal point are not significant - they
are place holders.
d) 0.046 04 L
4 Zeroes between two nonzero digits are significant. Zeroes to
the left of the first nonzero digit and to the right of the decimal
point are not sigificant - they are place holders.
e) 0.006 700 0 kg
5 Zeroes to the right of the last nonzero digit and to the right of
the decimal point are significant - if they were not they would
not be written. Zeroes to
the left of the first nonzero digit and to the right of the decimal
point are not sigificant - they are place holders. DSUM HDNI STYL
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