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Express your answer in scientific notation.

1.8*10^(-2)-3.9*10^(-3)=

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Express your answer in scientific notation.\newline1.81023.9103=1.8 \cdot 10^{-2}-3.9 \cdot 10^{-3}=\newline \square

Full solution

Q. Express your answer in scientific notation.\newline1.81023.9103=1.8 \cdot 10^{-2}-3.9 \cdot 10^{-3}=\newline \square
  1. Convert to same power: First, convert 3.9×1033.9 \times 10^{-3} to the same power of 1010 as 1.8×1021.8 \times 10^{-2}. 3.9×103=0.39×1023.9 \times 10^{-3} = 0.39 \times 10^{-2}
  2. Subtract coefficients: Now, subtract the coefficients. 1.80.39=1.411.8 - 0.39 = 1.41
  3. Combine with power: Combine the result with the power of 1010. 1.41×1021.41 \times 10^{-2}

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