Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
29th November 2002
- 1Surds3 marks
Rationalise the denominator of 132/sqrt(11), giving your answer in its simplest form.
- 2Proof2 marks
In an algebraic proof, how would you write the next odd number after 2n + 1 in terms of an integer n?
- 3Direct and Inverse Proportion Depth3 marks
y is inversely proportional to x^2. When x = 3, y = 12. Work out y when x = 2.
- 4The Cosine Rule3 marks
A triangle has sides 15 cm, 15 cm and 6 cm. Work out the angle opposite the 15 cm side, to 1 decimal place.
- 5Probability Equation Questions3 marks
A bag holds 8 red and n blue counters. The probability of taking a red is 8/11. Work out n.
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