Daily Practice
Foundation Plus
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12th March 1955
- 1Changing the Subject of a Formula3 marks
Make x the subject of y = 8x^2 - 2.
- 2Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 6, y = 60. Work out y when x = 9.
- 3Transformations2 marks
The point (-1, 2) is rotated 90° anticlockwise about the origin. Write down the coordinates of the image.
- 4Probability (Higher)3 marks
A biased coin lands on heads with probability 0.1. It is thrown 250 times. How many heads would you expect?
- 5Averages from Frequency Tables3 marks
In a survey 3 households own 1 car, 5 own 2 cars and 7 own 3 cars. Work out the mean number of cars, to 2 decimal places.
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