Respuesta :

Answer:

y = -4

Explanation:

Given the equation:

[tex]75.6\times10^y=0.00756[/tex][tex]\begin{gathered} 0.00756=7.56\times10^{-3} \\ =75.6\times10^{-4} \end{gathered}[/tex]

Thus, the number is -4.

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