Higher Plus
18th March 1981
- 1Bounds3 marks
A rectangle is 18 cm by 29 cm, each correct to the nearest cm. Work out the upper bound of its area.
- 2Quadratic Simultaneous Equations3 marks
Solve x^2 + y^2 = 289 and y = x + 7 simultaneously.
- 3Velocity Time Graphs2 marks
A train slows steadily from 20 m/s to rest in 5 seconds. Work out its deceleration.
- 4Vectors Proof Questions3 marks
OACB is a parallelogram with vector OA = c and vector OB = a. P is the point dividing AB in the ratio 3 : 1. Write vector OP in terms of c and a.
- 5Probability Equation Questions3 marks
The probability of winning a game is 3/5. A player expects 18 wins. How many games did they play?
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