Higher Plus
27th June 1979
- 1Bounds3 marks
A rectangle is 16 cm by 5 cm, each correct to the nearest cm. Work out the upper bound of its area.
- 2Algebraic Fractions3 marks
Write 5/(x + 4) + 3/(x - 2) as a single fraction.
- 3Direct and Inverse Proportion Depth3 marks
y is directly proportional to sqrt(x). When x = 9, y = 21. Work out y when x = 49.
- 4Vectors Proof Questions3 marks
OACB is a parallelogram with vector OA = c and vector OB = p. N is the point dividing AB in the ratio 1 : 3. Write vector ON in terms of c and p.
- 5Probability Equation Questions3 marks
The probability of winning a game is 1/4. A player expects 14 wins. How many games did they play?
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