Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
26th November 2010
- 1Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = 6a - b and vector RS = 18a - 3b. What does this show about PQ and RS?
- 2Probability Equation Questions3 marks
The probability of winning a game is 4/5. A player expects 20 wins. How many games did they play?
- 3Histograms2 marks
On a histogram, a 10-wide bar and a 20-wide bar have the same frequency density of 3. How many more values are in the wider class?
- 4Surds3 marks
Rationalise the denominator of 14/sqrt(7), giving your answer in its simplest form.
- 5Algebraic Fractions3 marks
Write 4/(x + 4) + 6/(x + 5) as a single fraction.
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