Higher Plus
15th September 1975
- 1Histograms2 marks
On a histogram, a 5-wide bar and a 20-wide bar have the same frequency density of 2. How many more values are in the wider class?
- 2Bounds3 marks
A block has mass 590 g (to the nearest 10 g) and volume 22 cm^3 (to the nearest cm^3). Work out the upper bound of its density, to 2 decimal places.
- 3The Nth Term of a Quadratic Sequence3 marks
Work out the nth term of the quadratic sequence 1, 9, 23, 43, ...
- 4Velocity Time Graphs3 marks
A cyclist speeds up steadily from 10 m/s to 14 m/s over 4 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 the alternate segment theorem is being proved. State the reason being quoted.
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