Daily Practice · Higher Plus

Daily Practice - Higher Plus

Grades 8-9 - exam-stretch algebra, geometry and reasoning.

19th July 2011

5 questions · 14 marks · Grades 8-9 · 51 question types in this band

1
Probability Equation Questions3 marks
The probability of winning a game is 3/8. A player expects 18 wins. How many games did they play?
2
Histograms3 marks
On a histogram the bar for 0 < x <= 5 has a frequency density of 2.4. How many values are in that class?
3
Surds3 marks
Expand and simplify (2 + sqrt(5))(2 - sqrt(5)).
4
Inverse and Composite Functions3 marks
f(x) = 6x + 5 and g(x) = 2x + 8. Work out fg(-3).
5
Velocity Time Graphs2 marks
A train slows steadily from 39 m/s to rest in 8 seconds. Work out its deceleration.

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