Higher Plus
18th June 1975
- 1Bounds3 marks
A rectangle is 20 cm by 28 cm, each correct to the nearest cm. Work out the upper bound of its area.
- 2The Nth Term of a Quadratic Sequence2 marks
A quadratic sequence starts 10, 23, 42, 67. Work out the second difference, and the coefficient of n^2.
- 3Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^3. When x = 2, y = 16. Work out y when x = 5.
- 4Vectors Proof Questions3 marks
OACB is a parallelogram with vector OA = q and vector OB = m. N is the midpoint. Write vector ON in terms of q and m.
- 5Probability Equation Questions3 marks
The probability of winning a game is 3/8. A player expects 6 wins. How many games did they play?
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