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Mathematics 9 Online
OpenStudy (anonymous):

how many significant digits are there in 4200 m

OpenStudy (anonymous):

2 significant digits

OpenStudy (ipwnbunnies):

This type of number is actually arbitrary. But I would say it's 2 as well. The 0's act as placeholders.

OpenStudy (anonymous):

LOL...the guy before me deleted his answer cause he found out it was wrong....LOL LMAO

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