Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 208 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 2Reverse Percentages3 marks
A bill is £168 including VAT at 20%. Work out the amount before VAT.
- 3Expanding and Factorising Quadratics3 marks
Factorise x^2 - 3x - 54.
- 4Repeated Percentage Change3 marks
A price rises by 10% 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 43°, angle B is 74° and side a is 11 cm. Use the sine rule to work out side b, to 1 decimal place.
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