1.

If \[{{\mathbf{3}}^{-\mathbf{x}}}=\mathbf{3000},\] then find \[\mathbf{1}{{\mathbf{0}}^{\mathbf{3}}}\times {{3}^{\left( 2x+3 \right)}}\]

A.  \[3\times {{10}^{-3}}\]           
B.  \[27\times {{10}^{-3}}\]      
C.  \[9\times {{10}^{-3}}\]                       
D.  3000
Answer» B.  \[27\times {{10}^{-3}}\]      


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