Daily Practice

Higher Plus

9th November 1962

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 8/13. Work out n.
2
Histograms3 marks
On a histogram the bar for 60 < x <= 80 has a frequency density of 3.5. How many values are in that class?
3
Surds3 marks
Rationalise the denominator of 84/sqrt(7), giving your answer in its simplest form.
4
Inverse and Composite Functions3 marks
f(x) = 5x - 6. Work out the inverse function f^-1(x).
5
Velocity Time Graphs2 marks
A train slows steadily from 27 m/s to rest in 5 seconds. Work out its deceleration.

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