Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
30th December 2015
- 1Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = 4a - 3b and vector RS = 12a - 9b. What does this show about PQ and RS?
- 2Probability Equation Questions3 marks
The probability of winning a game is 1/5. A player expects 11 wins. How many games did they play?
- 3Histograms2 marks
On a histogram, a 5-wide bar and a 15-wide bar have the same frequency density of 1.5. How many more values are in the wider class?
- 4Bounds3 marks
A rectangle is 16 cm by 25 cm, each correct to the nearest cm. Work out the upper bound of its area.
- 5Iteration3 marks
Use the iteration x(n+1) = cube root of (10x(n) + 9) with x(0) = 3. Work out x(1) to 3 decimal places.
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