Higher
18th September 1974
- 1Circle Theorems2 marks
A, B and C are points on a circle with centre O. Angle AOC is 64°. Work out angle ABC, where B is on the major arc.
- 2Venn Diagrams3 marks
In a Venn diagram, 18 are in A only, 3 in B only, 4 in both and 8 in neither. Work out the probability a random one is in both.
- 3Cumulative Frequency2 marks
Four classes in order have frequencies 9, 4, 7, 11. Write down the cumulative frequency at the end of the third class.
- 4The Product Rule for Counting2 marks
A meal deal has 3 mains, 9 sides and 6 drinks. How many different meals are possible?
- 5Expanding and Factorising Quadratics2 marks
Factorise x^2 - 9.
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