Respuesta :

grangergirl
a) move the decimal 7 places to the left: 1.234 x 10^7

b) move the decimal 4 places to the right: 5.7 x 10^-4

Hope this helps!!
[tex]1\underbrace{2340000}_{\leftarrow7}=1.2340000\cdot10^7=1.234\cdot10^7\\\\\\0.\underbrace{0005}_{4\to}7=5.7\cdot10^{-4}[/tex]

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