0580/22 Feb/Mar 2025, Question 9: Estimation
Cambridge IGCSE Mathematics 0580 · Paper 22 (Extended) · Non-calculator · 3 marks
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The question, in short
Estimate D from the formula using each number rounded to 1 significant figure.
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Solution · 3 marks
- 11.95 ≈ 2, 9.92 ≈ 10, 8.07 ≈ 8
- 2D ≈ √((2 × 10²)/8) = √(200/8)
- 3= √25 = 5
Answer5
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Also searched as: 0580/22/F/M/25 · 0580_m25_qp_22 · 0580 m25 22 · question 9.
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