Higher
9th September 1970
- 1SOHCAHTOA (Trigonometry)3 marks
A right-angled triangle has sides 7 cm, 24 cm and 25 cm. Work out the angle opposite the 7 cm side, to 1 decimal place.
- 2Probability Trees3 marks
A bag holds 3 red and 7 blue counters. Two are taken without replacement. Work out the probability both are red.
- 3Cumulative Frequency2 marks
Four classes in order have frequencies 6, 4, 12, 9. Write down the cumulative frequency at the end of the third class.
- 4Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.888... as a fraction in its simplest form.
- 5Parallel and Perpendicular Lines3 marks
Work out the equation of the line parallel to y = 4x - 8 that passes through (4, 20).
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