Daily Practice · Higher
Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
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29th April 2013
- 1Fractional and Negative Indices2 marks
Write 7^-1 as a fraction.
- 2Drawing Quadratic Graphs2 marks
For the curve y = x^2 + x - 1, work out y when x = 1.
- 3Repeated Percentage Change3 marks
A price rises by 20% and then falls by 15%. Work out the overall percentage change, to 2 decimal places.
- 4Sector Areas and Arc Lengths3 marks
A sector of a circle has radius 5 cm and angle 240°. Work out its area, to 1 decimal place.
- 5Conditional Probability3 marks
23 students study Spanish and 8 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
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