Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
18th July 2008
- 1Surds3 marks
Rationalise the denominator of 60/sqrt(6), giving your answer in its simplest form.
- 2Factorising Harder Quadratics3 marks
Solve 8x^2 - 18x + 9 = 0.
- 3Velocity Time Graphs2 marks
A train slows steadily from 12 m/s to rest in 8 seconds. Work out its deceleration.
- 4Finding the Area of Any Triangle3 marks
A triangle has sides of 12 cm and 16 cm and an area of 48.00 cm^2. Work out the acute angle between those two sides, to the nearest degree.
- 5Probability Equation Questions3 marks
A bag holds 5 counters, r of them red. Two are taken without replacement and P(both red) = 3/10. Work out r.
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