Daily Practice
Higher
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18th June 1985
- 1Capture Recapture3 marks
10 beetles are marked and released. Later 54 are caught, of which 6 are marked. Estimate the population.
- 2Fractional and Negative Indices3 marks
Work out 81^(3/2).
- 3Inequalities on Graphs2 marks
A region is defined by y <= 2x - 9. Should the boundary line be solid or dashed, and why?
- 4Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 5 : 9. Write y in terms of x.
- 5Spheres and Cones3 marks
A cone has base radius 5 cm and vertical height 18 cm. Work out its volume, leaving your answer in terms of pi.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of June 1985, including the monthly compilation PDF.