SOLUTION: Express in scientific notation with correct number of significant figures: a) 0.00345 b) 123,000 c) 120.7 d) 70,010

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Question 1162010: Express in scientific notation with correct number of significant figures:
a) 0.00345
b) 123,000
c) 120.7
d) 70,010

Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

All numbers, regardless of magnitude, can be expressed in the form:
N+%2A+10%5En
where
N is a number, either an integer or decimal, between 1 and 10
n is a positive or negative integer
a)
0.00345=3.45%2A10%5E-3
b)
123000=1.23%2A10%5E5
c)
120.7=1.207%2A10%5E2
d)
70010=7.001%2A10%5E4