Higher Plus
6th October 1976
- 1Velocity Time Graphs2 marks
A train slows steadily from 33 m/s to rest in 5 seconds. Work out its deceleration.
- 2The Cosine Rule3 marks
A triangle has sides 27 cm, 15 cm and 14 cm. Work out the angle opposite the 27 cm side, to 1 decimal place.
- 3Probability Equation Questions3 marks
A bag holds 2 red and n blue counters. The probability of taking a red is 2/9. Work out n.
- 4Histograms3 marks
On a histogram the bar for 40 < x <= 60 has a frequency density of 1.2. How many values are in that class?
- 5Bounds3 marks
A rectangle is 27 cm by 9 cm, each correct to the nearest cm. Work out the upper bound of its area.
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