1.For each of the following approximations,find
i) the number of significant figures;
ii) the lower limit and the upper limit of its true value.
a)123000(nearest thousand )
b)251(nearest unit)
c)120.0
d)0.045
F.2 Maths
2007-11-25 9:57 pm
回答 (2)
2007-11-25 10:09 pm
ai)3sig fig
aii)upper limit=123500/lower limit=122500
bi)3sig fig
bii)upper limit=251.5/lower limit=250.5
ci)4
cii)upper limit=120.05/lower limit=119.05
di)2
dii)upper limit=0.0475/lower limit=0.0325
aii)upper limit=123500/lower limit=122500
bi)3sig fig
bii)upper limit=251.5/lower limit=250.5
ci)4
cii)upper limit=120.05/lower limit=119.05
di)2
dii)upper limit=0.0475/lower limit=0.0325
2007-11-25 10:02 pm
a) sig=4
123500-122500
c)sig=3
d)sig=3
123500-122500
c)sig=3
d)sig=3
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