Higher Plus
14th September 1966
- 1Histograms2 marks
On a histogram, a 5-wide bar and a 10-wide bar have the same frequency density of 1.5. How many more values are in the wider class?
- 2Bounds3 marks
A rectangle is 10 cm by 18 cm, each correct to the nearest cm. Work out the upper bound of its area.
- 3Factorising Harder Quadratics3 marks
Solve 9x^2 + 21x + 10 = 0.
- 4Velocity Time Graphs3 marks
A cyclist speeds up steadily from 7 m/s to 21 m/s over 6 seconds. Use the area under the velocity-time graph to find the distance travelled.
- 53d Pythagoras and Trigonometry3 marks
A cuboid measures 13 cm by 14 cm by 9 cm. Work out the length of the longest diagonal inside it, to 1 decimal place.
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