Higher
23rd August 1987
- 1SOHCAHTOA (Trigonometry)3 marks
A right-angled triangle has sides 10 cm, 24 cm and 26 cm. Work out the angle opposite the 10 cm side, to 1 decimal place.
- 2Probability Trees3 marks
A bag holds 6 red and 3 blue counters. Two are taken without replacement. Work out the probability both are red.
- 3Box Plots2 marks
A box plot has a minimum of 16 and a maximum of 50. Work out the range.
- 4The Product Rule for Counting3 marks
A code is 3 letters (A to Z) followed by 4 digits (0 to 9), and repeats are allowed. How many codes are possible?
- 5Parallel and Perpendicular Lines3 marks
Work out the equation of the line parallel to y = -4x - 7 that passes through (1, -6).
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Any date always gives the same five questions, so a sheet can be set again or shared. All of August 1987, including the monthly compilation PDF.