Daily Practice

Higher

28th January 1987

5 questions · 12 marks · Grades 6-7 · 61 question types in this band

1
Surds2 marks
Write sqrt(48) in the form a sqrt(b), where b is as small as possible.
2
Solving Quadratics3 marks
Solve x^2 + 6x + 5 = 0.
3
Speed and Density2 marks
A block has volume 100 cm^3 and density 2.5 g/cm^3. Work out its mass.
4
Perpendicular Lines and the equation of a tangent2 marks
A line has gradient 5. Work out the gradient of a line perpendicular to it.
5
Conditional Probability3 marks
21 students study Spanish and 10 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.

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