nightcoreatheon
nightcoreatheon nightcoreatheon
  • 24-09-2018
  • Mathematics
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(1.9*10^-3)(2*10^4)
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gmany
gmany gmany
  • 25-09-2018

[tex](1.9\cdot10^{-3})(2\cdot10^4)=(1.9\cdot2)(10^{-3}\cdot10^4)=3.8\cdot10^{-3+4}\\\\=3.8\cdot10^1=3.8\cdot10=38\\\\Used:\\\\\text{commutative and associative property}\\\\a^n\cdot a^m=a^{n+m}[/tex]

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