Higher
19th January 1973
- 1Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 4, y = 28. Work out y when x = 15.
- 2SOHCAHTOA (Trigonometry)3 marks
A right-angled triangle has a hypotenuse of 8 cm and an angle of 56°. Work out the side adjacent to that angle, to 1 decimal place.
- 3Probability Trees3 marks
2 of 6 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Capture Recapture2 marks
A capture-recapture estimate is made of the newt population of a stream. State one assumption the method relies on.
- 5Standard Form3 marks
Work out (36 x 10^8) / (4 x 10^5). Give your answer in standard form.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of January 1973, including the monthly compilation PDF.