Question #0fc9d

1 Answer
Sep 18, 2015

a) 4 s.f.
b) 4 s.f.
c) 3 s.f.


The number of significant figures in each case are as follow:

a) #0.007160xx10^5# 4 significant figures.

three leading zeros don't count. one trailing zero in a number that has a decimal point counts. the #10^5# this is for scientific notation don't count.

b) #0.0004100xx10^7# 4 significant figures.

Same as aforementioned, however, here we have two trailing zeros that count.

c) #0.00900# 3 significant figures.

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A screenshot taking from my teaching notes.