Daily Practice
Higher
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29th February 1972
- 1Expanding and Factorising Quadratics3 marks
Factorise x^2 + 15x + 56.
- 2Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 2 : 3. Write y in terms of x.
- 3The Sine Rule3 marks
In triangle ABC, angle A is 63°, angle B is 46° and side a is 5 cm. Use the sine rule to work out side b, to 1 decimal place.
- 4Venn Diagrams3 marks
In a Venn diagram, 13 are in A only, 4 in B only, 9 in both and 2 in neither. Work out the probability a random one is in both.
- 5Capture Recapture3 marks
50 beetles are marked and released. Later 40 are caught, of which 5 are marked. Estimate the population.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of February 1972, including the monthly compilation PDF.