Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

9th February 2008

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 225. Work out y when x = 9.
2
Finding the Area of Any Triangle3 marks
A triangle has sides of 13 cm and 16 cm with an angle of 82° between them. Work out its area, to 1 decimal place.
3
Probability Trees3 marks
7 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Box Plots2 marks
A box plot has minimum 3, lower quartile 7, median 16, upper quartile 19 and maximum 28. Work out the interquartile range.
5
Standard Form3 marks
Work out (48 x 10^12) / (6 x 10^5). Give your answer in standard form.

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