Daily Practice · Higher Plus

Daily Practice - Higher Plus

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

14th December 2001

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

1
Probability Equation Questions3 marks
A bag holds 2 red and n blue counters. The probability of taking a red is 1/3. Work out n.
2
Histograms3 marks
On a histogram the bar for 20 < x <= 25 has a frequency density of 1.5. How many values are in that class?
3
Surds3 marks
Rationalise the denominator of 66/sqrt(6), giving your answer in its simplest form.
4
Inverse and Composite Functions3 marks
f(x) = 3x - 4. Work out the inverse function f^-1(x).
5
Velocity Time Graphs2 marks
A train slows steadily from 15 m/s to rest in 10 seconds. Work out its deceleration.

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