Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
14th August 2021
- 1Box Plots2 marks
A box plot has minimum 6, lower quartile 11, median 17, upper quartile 25 and maximum 32. Work out the interquartile range.
- 2Surds2 marks
Write sqrt(18) in the form a sqrt(b), where b is as small as possible.
- 3Expanding and Factorising Quadratics3 marks
Factorise x^2 - 4x - 32.
- 4Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 4, y = 144. Work out y when x = 3.
- 5The Sine Rule3 marks
In triangle ABC, angle A is 80°, angle B is 55° and side a is 14 cm. Use the sine rule to work out side b, to 1 decimal place.
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