Foundation Plus
7th February 1991
- 1Expanding and Factorising Quadratics3 marks
Factorise x^2 - 12x + 27.
- 2Speed and Density2 marks
A block has volume 45 cm^3 and density 7.5 g/cm^3. Work out its mass.
- 3Angles in Parallel Lines2 marks
Two parallel lines are crossed by a straight line. One of a pair of corresponding angles is 69°. Work out the other, and give a reason.
- 4Probability Trees3 marks
A bag holds 6 red and 3 blue counters. One is taken, replaced, then another is taken. Work out the probability both are red.
- 5Scatter Graphs2 marks
A scatter graph plots a runner's time for 100 m and the distance they can throw a ball. What type of correlation would you expect?
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