Higher Plus
1st March 1959
- 1Histograms3 marks
A histogram has two bars: one 5 units wide with frequency density 2.5, one 5 units wide with density 3.5. How many values in total?
- 2Bounds3 marks
x = 115 and y = 39, each correct to the nearest whole number. Work out the upper bound of x - y.
- 3Factorising Harder Quadratics3 marks
Solve 4x^2 + 20x + 25 = 0.
- 4Velocity Time Graphs2 marks
On a velocity-time graph a car speeds up in a straight line from 5 m/s to 7 m/s over 4 seconds. Work out the acceleration.
- 53d Pythagoras and Trigonometry3 marks
A cuboid measures 5 cm by 8 cm by 4 cm tall. Work out the angle between its longest internal diagonal and the base, to 1 decimal place.
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