Daily Practice - Foundation Plus
21st September 1991
- 1Averages from Frequency Tables2 marks
Grouped data has five classes of width 5, the first being 15 < x <= 20. The frequencies in order are 21, 16, 3, 7, 11. Write down the modal class.
- 2Standard Form2 marks
Work out (7 x 10^3) x (3 x 10^6). Give your answer in standard form.
- 3Solving Simultaneous Equations Graphically3 marks
The lines y = 2x + 1 and y = 3x + 2 are drawn. Write down the coordinates of the point where they cross.
- 4Ratio2 marks
Red and blue stickers are in the ratio 4 : 5. There are 32 red stickers. How many stickers are there altogether?
- 5Exact trig values1 mark
Write down the exact value of cos 45°.
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