Higher
16th November 1989
- 1SOHCAHTOA (Trigonometry)3 marks
A right-angled triangle has sides 20 cm, 21 cm and 29 cm. Work out the angle opposite the 20 cm side, to 1 decimal place.
- 2Probability Trees3 marks
A bag holds 9 red and 3 blue counters. Two are taken without replacement. Work out the probability both are red.
- 3Histograms2 marks
A histogram class is 2 units wide and contains 1 values. Work out the frequency density.
- 4Surds2 marks
Write sqrt(32) in the form a sqrt(b), where b is as small as possible.
- 5Parallel and Perpendicular Lines3 marks
Work out the equation of the line parallel to y = x + 8 that passes through (2, 14).
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Any date always gives the same five questions, so a sheet can be set again or shared. All of November 1989, including the monthly compilation PDF.