Higher
6th January 1970
- 1The Sine Rule3 marks
In triangle ABC, angle A is 42°, angle B is 38° and side a is 15 cm. Use the sine rule to work out side b, to 1 decimal place.
- 2Venn Diagrams3 marks
In a Venn diagram, 10 are in A only, 16 in B only, 11 in both and 10 in neither. Work out the probability a random one is in both.
- 3Capture Recapture3 marks
55 fish are marked and released. Later 77 are caught, of which 7 are marked. Estimate the population.
- 4The Product Rule for Counting2 marks
A meal deal has 7 mains, 9 sides and 3 drinks. How many different meals are possible?
- 5Expanding and Factorising Quadratics3 marks
Factorise x^2 + 5x - 14.
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