Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
6th September 2008
- 1Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 4, y = 96. Work out y when x = 7.
- 2Sector Areas and Arc Lengths3 marks
A sector of a circle has radius 11 cm and angle 60°. Work out its area, to 1 decimal place.
- 3Conditional Probability3 marks
14 students study Spanish and 5 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 4Box Plots2 marks
A box plot has minimum 3, lower quartile 6, median 14, upper quartile 23 and maximum 29. Work out the interquartile range.
- 5Fractional and Negative Indices3 marks
Work out 81^(3/2).
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