Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Expanding and Factorising Quadratics3 marks
Factorise x^2 - 13x + 42.
- 2Repeated Percentage Change3 marks
A town's population is 20500 and grows by 3% each year. Work out the population after 5 years, to the nearest whole number.
- 3The Sine Rule3 marks
In triangle ABC, angle A is 73°, angle B is 77° and side a is 18 cm. Use the sine rule to work out side b, to 1 decimal place.
- 4Venn Diagrams3 marks
In a Venn diagram, 10 are in A only, 9 in B only, 3 in both and 9 in neither. Work out the probability a random one is in both.
- 5Histograms2 marks
A histogram class is 4 units wide and contains 8 values. Work out the frequency density.
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