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05-02-2016
Mathematics

Answered

The expression of 5008 km in scientific notation is ____

A5.008 x 103 km
B50.08 x 10-4 km
C5.008 x 10-3 km
D5.008 x 104 km

Verified Answer :

10-08-2017

C is the correct answer. In scientific notation, the number must be a single number (i.e. in the units place value column), so B is incorrect. There are 3 meaningful digits after the decimal point, so it is 10^3. Standard form is written by 10^x, and C is the best representation of that.

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