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Required Question #7 7) 100^2 x 100^5 = 100^y y=?

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Given the general rule for exponents:


a^n\cdot a^m=a^(n+m)

then, in this case we have the following:


\begin{gathered} 100^2x100^5=100^y \\ \Rightarrow(100^2)\cdot(100^5)=100^(2+5)=100^7 \\ \Rightarrow y=7 \end{gathered}

therefore, y=7

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