Higher Plus
31st July 1970
- 1Histograms2 marks
On a histogram, a 10-wide bar and a 30-wide bar have the same frequency density of 2.5. How many more values are in the wider class?
- 2Surds3 marks
Rationalise the denominator of 66/sqrt(11), giving your answer in its simplest form.
- 3Rearranging Harder Formulae3 marks
Make x the subject of 2x + 6 = y(x + 6).
- 4Velocity Time Graphs3 marks
A cyclist speeds up steadily from 7 m/s to 21 m/s over 10 seconds. Use the area under the velocity-time graph to find the distance travelled.
- 53d Pythagoras and Trigonometry3 marks
A cuboid measures 4 cm by 6 cm by 14 cm tall. Work out the angle between its longest internal diagonal and the base, to 1 decimal place.
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