Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

11th October 2013

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
The Sine Rule3 marks
In triangle ABC, angle A is 47°, angle B is 40° and side a is 10 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, 18 in B only, 4 in both and 2 in neither. Work out the probability a random one is in both.
3
Capture Recapture2 marks
A capture-recapture estimate is made of the moth population of a meadow. State one assumption the method relies on.
4
Fractional and Negative Indices2 marks
Write 9^-3 as a fraction.
5
Expanding and Factorising Quadratics3 marks
Factorise x^2 - 2x - 48.

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