Question

como resolvo 7,77.10 elevado a -2 + 2,175.10 elevado a 1 + 1,1.10 elevado a 3

Answer 1

7,77 . 10^ (-2) = 0,0777
2,175 . 10 ^ (1) = 21,75
1,1 . 10 ^(3) = 1100

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Answer 2

$\large\boxed{\begin{array}{l}\sf 7,77\cdot10^{-2}\\\sf 2,175\cdot10^{1}=0,02175\cdot10^{-2}\\\sf 1,1\cdot10^3=110000\cdot10^{-2}\\\sf 7,77\cdot10^{-2}+2,175\cdot10^1+1,1\cdot10^3\\\sf=7,77\cdot10^{-2}+0,02175\cdot10^{-2}+110000\cdot10^{-2}\\\sf=110007,79175\cdot10^{-2}\\\sf=1,1000779175\cdot10^3\end{array}}$