Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
8th November 2001
- 1Probability Equation Questions3 marks
The probability of winning a game is 1/8. A player expects 6 wins. How many games did they play?
- 2Histograms3 marks
On a histogram the bar for 40 < x <= 50 has a frequency density of 1.5. How many values are in that class?
- 3Surds3 marks
Simplify sqrt(27) + sqrt(147), giving your answer in the form a sqrt(b).
- 4Completing the Square3 marks
Work out the coordinates of the turning point of y = x^2 - 12x + 14.
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^3. When x = 4, y = 384. Work out y when x = 5.
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