Daily Practice

Higher Plus

21st December 1956

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

1
3d Pythagoras and Trigonometry3 marks
A cuboid measures 13 cm by 4 cm by 7 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 3 red and 7 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 20 units wide with frequency density 1.2, one 20 units wide with density 1.4. How many values in total?
4
Surds3 marks
Rationalise the denominator of 110/sqrt(11), giving your answer in its simplest form.
5
Proof2 marks
In an algebraic proof, how would you write three consecutive even numbers in terms of an integer n?

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