Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
26th April 2010
- 1Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 176 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 2Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.4242... as a fraction in its simplest form.
- 3Expanding and Factorising Quadratics3 marks
Factorise x^2 - 3x - 18.
- 4Repeated Percentage Change3 marks
A price rises by 20% and then falls by 20%. Work out the overall percentage change, to 2 decimal places.
- 5The Sine Rule3 marks
In triangle ABC, angle A is 52°, angle B is 91° and side a is 16 cm. Use the sine rule to work out side b, to 1 decimal place.
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