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22-11-2018
Mathematics

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Multiply (1.9 × 10^7)(3 × 10^6). Express the result in scientific notation.
5.7 × 10^13

5.7 × 10^12

5.7 × 10^42

5.7 × 10^43

Respuesta :

22-11-2018

[tex](1.9\cdot10^7)(3\cdot10^6)=(1.9\cdot3)(10^7\cdot10^6)=5.7\cdot10^{7+6}\\\\=\boxed{5.7\cdot10^{13}}\\\\Used:\ a^n\cdot a^m=a^{n+m}[/tex]

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