Foundation Plus
8th February 1969
- 1Changing the Subject of a Formula3 marks
Make x the subject of y = 3x^2 - 7.
- 2Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 7, y = 70. Work out y when x = 6.
- 3SOHCAHTOA (Trigonometry)3 marks
A right-angled triangle has a hypotenuse of 21 cm and an angle of 58°. Work out the side opposite that angle, to 1 decimal place.
- 4Probability Trees3 marks
A bag holds 5 red and 4 blue counters. Two are taken without replacement. Work out the probability both are red.
- 5Averages from Frequency Tables3 marks
In a survey 4 households own 1 car, 3 own 2 cars and 4 own 3 cars. Work out the mean number of cars, to 2 decimal places.
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