bekkah323
  • bekkah323
Multiply and express your results using scientific notation? (3.1*10^5)(4.5*10^-3)
Mathematics
  • Stacey Warren - Expert brainly.com
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
Are you allowed to use a calculator? My calculator got 1,395 and in Scientific notation it would be 1.4x10^3.
bekkah323
  • bekkah323
Yes, and how did you get that
anonymous
  • anonymous
multiply \(3.1\times 4.5\) then also multiply \(10^5\times 10^{-3}\) the first is just a multiplication, the second you do by \(10^5\times 10^{-3}=10^{5-3}=10^2\)

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anonymous
  • anonymous
since \(3.1\times 4.5=13.95\) you get \[13.95\times 10^2\] to put in scientific notation, move the decimal place left one place, and add one to the exponent you get \(1.395\times 10^3\)
bekkah323
  • bekkah323
thank you

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