Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Cumulative Frequency2 marks
Four classes in order have frequencies 8, 11, 3, 10. Write down the cumulative frequency at the end of the third class.
- 2The Product Rule for Counting3 marks
A code is 3 letters (A to Z) followed by 3 digits (0 to 9), and repeats are allowed. How many codes are possible?
- 3Expanding and Factorising Quadratics3 marks
Factorise x^2 - x - 20.
- 4Speed and Density2 marks
A block has volume 120 cm^3 and density 2.5 g/cm^3. Work out its mass.
- 5The Sine Rule3 marks
In triangle ABC, angle A is 67°, angle B is 76° and side a is 17 cm. Use the sine rule to work out side b, to 1 decimal place.
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