calculusxy
  • calculusxy
MEDAL for checking an answer with Scientific Notations operation! Question posted below...
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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calculusxy
  • calculusxy
\[\huge 5.3 \times 10^{-5} \times 8.8 \times 10^{-3}\]
calculusxy
  • calculusxy
\[\huge Answer \] \[\large 4.664 \times 10^{-7}\]
Hero
  • Hero
Result can only be accurate to two decimal places

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Hero
  • Hero
Also you added exponents incorrectly
calculusxy
  • calculusxy
I don't understand ...
Hero
  • Hero
When you multiply using decimals you have to count the total number of digits that occur after the decimal point. In this case there are two . One for each number . So your answer can only be accurate to two decimal places.
calculusxy
  • calculusxy
Can you explain this to me more with the question? I can't grasp what you're trying to say
Hero
  • Hero
One moment
calculusxy
  • calculusxy
@Hero
Hero
  • Hero
calculusxy
  • calculusxy
so where was my mistake?
Hero
  • Hero
You have three digits expressed after the decimal in your answer
Hero
  • Hero
µo you have to use rules of exponents When multiplying powers.
calculusxy
  • calculusxy
but the answer after i multiplied was 46.64.. so i moved it one space to the left to make it between 1 and 10 and so i got 4.664.
Hero
  • Hero
The exponent part is definitely incorrect though
calculusxy
  • calculusxy
can you explain to me how?
Hero
  • Hero
Because you add exponents when multiplying powers
calculusxy
  • calculusxy
i did .
calculusxy
  • calculusxy
didn't i?
Hero
  • Hero
You know, I realise now that your result IS correct
calculusxy
  • calculusxy
okay thank you. can you make sure another answer of mine? \[\large 6.4 \times 10^{-1} \times 6.6 \times 10^{-9}\]
calculusxy
  • calculusxy
would the answer be \[\large 4.224 \times 10^{-9}\]
calculusxy
  • calculusxy
@Hero
Hero
  • Hero
If you followed the same format as you did with your previous problem, it should be correct. You can check with wolfram
calculusxy
  • calculusxy
Okay thank you so much!!!!!!

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