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Topic: Did I do this right? (Read 3003 times)
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dmblove26
New Member
Posts: 4
Mole Snacks: +0/-0
Did I do this right?
«
on:
February 23, 2014, 03:31:36 PM »
find the log of 2.48 * 10 ^-8
I ended up with 0.000000004?
Does anyone have any clear instructions on how to find the log of a number using the calculator. What are the steps? I have to explain them to someone and I'm bad at explaining things.
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Arkcon
Retired Staff
Sr. Member
Posts: 7367
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Re: Did I do this right?
«
Reply #1 on:
February 23, 2014, 05:59:11 PM »
That's not the number I get when I enter "2.48 * 10 ^-8" into Google's online calculator, either Log
10
or natural logarithm. Given the definition of logarithm, given here:
http://en.wikipedia.org/wiki/Logarithm
, your answer doesn't seem to be correct -- for example, 10 raised to the 0.000 000 004 isn't 0.000 000 002 48.
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Hey, I'm not judging. I just like to shoot straight. I'm a man of science.
DrCMS
Chemist
Sr. Member
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Re: Did I do this right?
«
Reply #2 on:
February 24, 2014, 04:21:27 AM »
Do you want (log 2.48)x10
-8
or log (2.48x10
-8
). You have the answer for the 1st not the 2nd
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Did I do this right?