Edexcel Mathematics Higher Tier, November 2009 (1380/4H) (Paper 4, calculator)


Question 15 a) m3 + 4 = m7 b) p7 – 3 = p4 c) 4 x 3 x x2 + 1 x y3 + 2 = 12x3y5


Question 16 As this is a right angled triangle we can use Pythagoras’ Theorem.


a2 + b2 = c2 where c is the longest side So in this case AB2 + BC2 = AC2


142 + 122 = AC2 196 + 144 = AC2 340 = AC2 square root both sides √340 = AC


AC = 18.4 cm (correct to 3 significant figures)


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