Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
17th August 2013
- 1Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 50. Work out y when x = 4.
- 2Finding the Area of Any Triangle3 marks
A triangle has sides of 8 cm and 8 cm with an angle of 138° between them. Work out its area, to 1 decimal place.
- 3Probability Trees3 marks
2 of 5 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Box Plots2 marks
A box plot has minimum 9, lower quartile 19, median 23, upper quartile 33 and maximum 35. Work out the interquartile range.
- 5Fractional and Negative Indices2 marks
Write 5^-3 as a fraction.
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