Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
19th June 2002
- 1Cumulative Frequency2 marks
Four classes in order have frequencies 4, 4, 11, 10. Write down the cumulative frequency at the end of the third class.
- 2Surds2 marks
Write sqrt(32) in the form a sqrt(b), where b is as small as possible.
- 3Parallel and Perpendicular Lines3 marks
A line has equation y = -3x + 8. Work out the gradient of any line perpendicular to it.
- 4Speed and Density2 marks
A block has volume 135 cm^3 and density 3 g/cm^3. Work out its mass.
- 5Enlarging with Negative Scale Factors3 marks
The point (4, 5) is enlarged by scale factor -3 about the centre (0, -3). Write down the coordinates of the image.
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