Daily Practice - Higher Plus
4th August 1994
- 13d Pythagoras and Trigonometry3 marks
A cuboid measures 6 cm by 8 cm by 13 cm tall. Work out the angle between its longest internal diagonal and the base, to 1 decimal place.
- 2Conditional Probability3 marks
A bag holds 9 red and 3 blue counters. Two are taken without replacement. Given the first was red, what is the probability the second is blue?
- 3Histograms3 marks
A histogram has two bars: one 10 units wide with frequency density 2, one 25 units wide with density 0.6. How many values in total?
- 4Surds3 marks
Simplify sqrt(50) + sqrt(98), giving your answer in the form a sqrt(b).
- 5The Nth Term of a Quadratic Sequence2 marks
A quadratic sequence starts 5, 15, 29, 47. Work out the second difference, and the coefficient of n^2.
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