Higher Plus
11th June 1976
- 1Histograms3 marks
A histogram has two bars: one 10 units wide with frequency density 2, one 25 units wide with density 0.8. How many values in total?
- 2Surds3 marks
Rationalise the denominator of 27/sqrt(3), giving your answer in its simplest form.
- 3Rearranging Harder Formulae3 marks
Make x the subject of 7x + 5 = y(x + 5).
- 4Velocity Time Graphs2 marks
On a velocity-time graph a car speeds up in a straight line from 3 m/s to 27 m/s over 8 seconds. Work out the acceleration.
- 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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