Mathematics · Oct / Nov 2023 · Paper 21 · Question 16
0580
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The question as text
P w h 2 2 = + w 11 = and . h 9 5 = , both correct to 2 significant figures. Find the lower bound and the upper bound for P. Lower bound = Upper bound = [3]
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[Lower bound =] 39.9 nfww [Upper bound =] 42.1 nfww [3]
B2 for one correct
or M1 for 11 + 0.5 or 9.5 + 0.05 or 11 – 0.5 or 9.5 – 0.05
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