Higher Plus
5th October 1962
- 1Histograms2 marks
On a histogram, a 5-wide bar and a 15-wide bar have the same frequency density of 1.5. How many more values are in the wider class?
- 2Surds3 marks
Rationalise the denominator of 14/sqrt(7), giving your answer in its simplest form.
- 3Rearranging Harder Formulae3 marks
Make x the subject of 6x + 8 = y(x + 8).
- 4Velocity Time Graphs3 marks
A cyclist speeds up steadily from 10 m/s to 26 m/s over 12 seconds. Use the area under the velocity-time graph to find the distance travelled.
- 53d Pythagoras and Trigonometry3 marks
A cuboid measures 8 cm by 14 cm by 5 cm. Work out the length of the longest diagonal inside it, to 1 decimal place.
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