2025 IGCSE 0580 February/March P42 Q9

2025 IGCSE 0580 February/March P42 Q9

3 marks
  1. Write \(0.007\,09\) in standard form.[1]
  2. Work out \(\left(4\times10^4\right)^2\).
    Give your answer in standard form.[2]

Solution:

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Answer:(a) \(7.09\times10^{-3}\). (b) \(1.6\times10^9\).

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