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Chemistry 22 Online
OpenStudy (anonymous):

Round to three significant figures. 79777.12

OpenStudy (aaronq):

count from the right, you'll have to use scientific notation

OpenStudy (aaronq):

sorry count from the left lol not the right

OpenStudy (anonymous):

oh okay

OpenStudy (anonymous):

aren't all of these numbers significant though?

OpenStudy (aaronq):

yeah, but it's asking you to express it with only 3

OpenStudy (anonymous):

Okay, so it would be 7.98*10^4

OpenStudy (aaronq):

yep

OpenStudy (anonymous):

Okay, what about 0.000045479? I thought it would be 4.55 but I don't know what amount I should put for 10^? for the problem.

OpenStudy (aaronq):

yep, you would use a negative sign on it \(10^{-5}\)

OpenStudy (anonymous):

ah, thank you!

OpenStudy (aaronq):

np!

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