calculusxy
  • calculusxy
MEDAL for Scientific Notation Operations help!!! 5.4 x 10^2 x 7.5 x 10^{-7}
Mathematics
  • Stacey Warren - Expert brainly.com
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schrodinger
  • schrodinger
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calculusxy
  • calculusxy
\[\huge 5.4 \times 10^2 \times 7.5 \times 10^{-7}\]
imqwerty
  • imqwerty
scientific notation of 23.212 x10^3 is 2.3212 x 10^4
imqwerty
  • imqwerty
jst an example^

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calculusxy
  • calculusxy
\[\large (5.4 \times 7.5)(10^2 \times 10^{-7}) = 40.50 \times 10^{-5}\] I don't know how to go from there.
welshfella
  • welshfella
first find 5.4 * 7.5 then 10^2 * 10^-7
welshfella
  • welshfella
right now that's not scientific notation because 40.5 is not between 1 and 10
welshfella
  • welshfella
Hint: part of the next procedure is to divide 40.5 by 10
calculusxy
  • calculusxy
okay. so that would be 4.05
welshfella
  • welshfella
- but os corse you have to retain the correct value of the number
calculusxy
  • calculusxy
\[4.05 \times 10^{-1} \times 10^{-5}\]
calculusxy
  • calculusxy
would it be something like that?
welshfella
  • welshfella
you have to multiply the exponent part by 10
welshfella
  • welshfella
you are not correct in the last post
calculusxy
  • calculusxy
okay. so can you explain to me how i should do it?
welshfella
  • welshfella
its 4.05 * 10^1 * 10^-5
welshfella
  • welshfella
since we divided 40.5 by 10 we need to do the inverse, multiply, exponent part by 10 to reatain the correct value
calculusxy
  • calculusxy
oh is it because i have to multiply 10^1 to get to 40.50 and then go about from there?
calculusxy
  • calculusxy
oh ok. so the answer would be \[\large 4.5^{-4}\]
welshfella
  • welshfella
No its 4.05 * 10^-4
calculusxy
  • calculusxy
oh yeah sorry typo
welshfella
  • welshfella
|dw:1443291233159:dw|

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