Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
18th December 2013
- 1Cumulative Frequency2 marks
Four classes in order have frequencies 8, 12, 6, 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 4 digits (0 to 9), and repeats are allowed. How many codes are possible?
- 3Expanding and Factorising Quadratics2 marks
Factorise x^2 - 36.
- 4Speed and Density2 marks
A block has volume 175 cm^3 and density 2.5 g/cm^3. Work out its mass.
- 5Circle Theorems2 marks
A, B and C are points on a circle with centre O. Angle AOC is 148°. Work out angle ABC, where B is on the major arc.
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