Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
15th December 1999
- 1Bounds3 marks
A rectangle is 16 cm by 7 cm, each correct to the nearest cm. Work out the upper bound of its area.
- 2The Nth Term of a Quadratic Sequence3 marks
Work out the nth term of the quadratic sequence 11, 20, 35, 56, ...
- 3Direct and Inverse Proportion Depth3 marks
y is inversely proportional to x^2. When x = 5, y = 8. Work out y when x = 2.
- 4The Cosine Rule3 marks
A triangle has sides 6 cm, 10 cm and 6 cm. Work out the angle opposite the 6 cm side, to 1 decimal place.
- 5Probability Equation Questions3 marks
A bag holds 2 red and n blue counters. The probability of taking a red is 2/7. Work out n.
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