Daily Practice

Higher

25th February 1988

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
The Sine Rule3 marks
In triangle ABC, angle A is 70°, angle B is 67° and side a is 6 cm. Use the sine rule to work out side b, to 1 decimal place.
2
Venn Diagrams3 marks
In a Venn diagram, 16 are in A only, 4 in B only, 2 in both and 2 in neither. Work out the probability a random one is in both.
3
Histograms2 marks
A histogram class is 10 units wide and contains 25 values. Work out the frequency density.
4
Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.6161... as a fraction in its simplest form.
5
Expanding and Factorising Quadratics3 marks
Factorise x^2 + 3x - 4.

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