Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
14th September 2001
- 1Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = 4a + 3b and vector RS = 8a + 6b. What does this show about PQ and RS?
- 2Probability Equation Questions3 marks
The probability of winning a game is 4/5. A player expects 12 wins. How many games did they play?
- 3Histograms2 marks
On a histogram, a 4-wide bar and a 8-wide bar have the same frequency density of 3. How many more values are in the wider class?
- 4Surds3 marks
Rationalise the denominator of 12/sqrt(2), giving your answer in its simplest form.
- 5Factorising Harder Quadratics3 marks
Solve 4x^2 - 23x + 15 = 0.
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