Respuesta :

dalendrk
[tex]0\underbrace{.000000004}_{9\to}72=4.72\cdot10^{-9}[/tex]
The power of 10 is equal to the numbers of 0;
[tex] 10^{-9} *472 = 4.72*10^{-11} [/tex]  ≈[tex]5* 10^{-11} [/tex]

Final answer: [tex]5* 10^{-11} [/tex]


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