Higher Plus
18th June 1969
- 1Histograms2 marks
On a histogram, a 10-wide bar and a 40-wide bar have the same frequency density of 2. How many more values are in the wider class?
- 2Bounds3 marks
A rectangle is 24 cm by 7 cm, each correct to the nearest cm. Work out the upper bound of its area.
- 3Rearranging Harder Formulae3 marks
Make x the subject of 8x + 3 = y(x + 3).
- 4Velocity Time Graphs3 marks
A cyclist speeds up steadily from 9 m/s to 25 m/s over 10 seconds. Use the area under the velocity-time graph to find the distance travelled.
- 5Proof of the Circle Theorems2 marks
In a circle theorem proof, a step uses the fact that two angles at the circumference stand on the same arc. State the reason being quoted.
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