Daily Practice
Higher
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30th March 1990
- 1Capture Recapture2 marks
A capture-recapture estimate is made of the beetle population of a woodland. State one assumption the method relies on.
- 2Standard Form2 marks
Work out (5 x 10^6) x (7 x 10^-3). Give your answer in standard form.
- 3Parallel and Perpendicular Lines3 marks
A line has equation y = -3x + 3. Work out the gradient of any line perpendicular to it.
- 4Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 3, y = 6. Work out y when x = 9.
- 5Enlarging with Negative Scale Factors3 marks
The point (-5, -3) is enlarged by scale factor -2 about the centre (1, -4). Write down the coordinates of the image.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of March 1990, including the monthly compilation PDF.