jylarai
  • jylarai
convert the length 7 centimeters to meters. Compare the numerical values when both numbers are written in scientific notation
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
1st you need to know the conversion factor between centimeters to meters. I.e.) How many centimeters are in 1 meter. Or viceversa, how many meters are in one centimeter. You need to know one of those first.
jylarai
  • jylarai
I know that 7 centimeters equal .07 meters
anonymous
  • anonymous
Well formally what I would do is set up my dimensional analysis like this:|dw:1441151331230:dw|

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anonymous
  • anonymous
The thing in parentheses is called the "conversion factor". As long as you set up your conversion factor so the units you DON'T want cancel... you're good to go
anonymous
  • anonymous
See how the centimeters cancel in this case and you're only left with meters? Nice and easy :)
jylarai
  • jylarai
Can you help me with the second part of the question
anonymous
  • anonymous
Oh sorry I didn't see that. Yes so scientific notation means you only have 1 single non-zero digit and then immediately following it to the right you have a decimal point. Obviously 0.07 is not written in scientific notation because 0 doesn't count. So how can you write it such that the number begins with anything other than 0?
anonymous
  • anonymous
It would be something like 7. ... something something... What does this have to be in order that we preserve the meaning of 0.07?
jylarai
  • jylarai
7x10^-2
anonymous
  • anonymous
There you go
jylarai
  • jylarai
But what does it mean to compare the numerical values when both numbers are written in scientific notation?
jylarai
  • jylarai
Is there a second number we have to convert to scientifc notations?

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