Daily Practice · Higher Plus

Daily Practice - Higher Plus

13th October 1992

5 questions · 15 marks · Grades 8-9 · 51 question types in this band

1
3d Pythagoras and Trigonometry3 marks
A cuboid measures 12 cm by 12 cm by 12 cm tall. Work out the angle between its longest internal diagonal and the base, to 1 decimal place.
2
Conditional Probability3 marks
A bag holds 7 red and 3 blue counters. Two are taken without replacement. Given the first was red, what is the probability the second is blue?
3
Histograms3 marks
A histogram has two bars: one 5 units wide with frequency density 2, one 10 units wide with density 1.4. How many values in total?
4
Surds3 marks
Expand and simplify (6 + sqrt(10))(6 - sqrt(10)).
5
Inverse and Composite Functions3 marks
f(x) = 8x - 11. Work out the inverse function f^-1(x).

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