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IP1 Class Test (May 2025) Q7

IP1 Class Test (May 2025) Q7

IP 1
6 marks
  1. Express \(10893.69775\) to
    1. \(3\) significant figures,[1]
    2. the nearest hundredth.[1]
  2. Given that \(\sqrt{7.89}\approx 2.809\), \(\sqrt[3]{7.89}\approx 1.991\) and \(\sqrt{78.9}\approx 8.883\), showing your working clearly, evaluate,
    1. \(\sqrt{789000}\),[2]
    2. \(\sqrt[3]{0.00789}\),[2]

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Answer:(i)(a) \(10900\) (b) \(10893.70\) (ii)(a) \(888.3\) (b) \(0.1991\)

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