Daily Practice · Higher

Daily Practice - Higher

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

15th June 2011

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

1
Fractional and Negative Indices3 marks
Work out 16^(3/2).
2
Quadratic Formula3 marks
Work out the discriminant of 2x^2 - 8x + 9 = 0 and say how many real solutions it has.
3
Speed and Density2 marks
A block has volume 50 cm^3 and density 7.5 g/cm^3. Work out its mass.
4
Similar Shapes (Area and Volume)3 marks
Two similar shapes have lengths in the ratio 1 : 4. The smaller has an area of 24 cm^2. Work out the area of the larger.
5
Conditional Probability3 marks
13 students study Spanish and 9 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.

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