Higher Plus
1st January 1960
- 1Histograms2 marks
On a histogram, a 5-wide bar and a 20-wide bar have the same frequency density of 3. How many more values are in the wider class?
- 2Surds3 marks
Rationalise the denominator of 12/sqrt(6), giving your answer in its simplest form.
- 3Factorising Harder Quadratics3 marks
Solve 6x^2 + 11x + 4 = 0.
- 4Velocity Time Graphs3 marks
A cyclist speeds up steadily from 7 m/s to 11 m/s over 6 seconds. Use the area under the velocity-time graph to find the distance travelled.
- 5Perpendicular Lines and the equation of a tangent3 marks
The point (5, 12) lies on the circle x^2 + y^2 = 169. Work out the gradient of the tangent to the circle at that point.
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