Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
- 1Probability Equation Questions3 marks
The probability of winning a game is 1/2. A player expects 14 wins. How many games did they play?
- 2Histograms3 marks
On a histogram the bar for 50 < x <= 70 has a frequency density of 2.4. How many values are in that class?
- 3Surds3 marks
Rationalise the denominator of 12/sqrt(2), giving your answer in its simplest form.
- 4Proof2 marks
In an algebraic proof, how would you write the next even number after 2n in terms of an integer n?
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^3. When x = 4, y = 320. Work out y when x = 2.
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