Daily Practice · Higher Plus

Daily Practice - Higher Plus

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

14th May 2019

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

1
Probability Equation Questions3 marks
A bag holds 8 red and n blue counters. The probability of taking a red is 8/11. Work out n.
2
Histograms3 marks
On a histogram the bar for 40 < x <= 45 has a frequency density of 1.5. How many values are in that class?
3
Surds3 marks
Expand and simplify (6 + sqrt(5))(6 - sqrt(5)).
4
Inverse and Composite Functions3 marks
f(x) = 5x - 5 and g(x) = 3x - 5. Work out fg(0).
5
Velocity Time Graphs2 marks
A train slows steadily from 32 m/s to rest in 5 seconds. Work out its deceleration.

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