Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
25th January 2008
- 1Capture Recapture2 marks
A capture-recapture estimate is made of the snail population of a hedgerow. State one assumption the method relies on.
- 2Surds2 marks
Write sqrt(8) in the form a sqrt(b), where b is as small as possible.
- 3Inequalities on Graphs2 marks
A region is defined by y < -3x - 4. Should the boundary line be solid or dashed, and why?
- 4Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 8, y = 64. Work out y when x = 7.
- 5Spheres and Cones3 marks
A cone has base radius 10 cm and vertical height 21 cm. Work out its volume, leaving your answer in terms of pi.
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