Daily Practice · Higher

Daily Practice - Higher

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

1st December 2009

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

1
Circle Theorems2 marks
ABCD is a cyclic quadrilateral. Angle ABC is 93°. Work out angle ADC.
2
Probability Trees3 marks
A bag holds 4 red and 4 blue counters. Two are taken without replacement. Work out the probability both are red.
3
Capture Recapture3 marks
20 voles are marked and released. Later 16 are caught, of which 2 are marked. Estimate the population.
4
Fractional and Negative Indices3 marks
Work out 81^(3/2).
5
Changing the Subject of a Formula3 marks
Make x the subject of y = 9x^2 - 11.

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