Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
22nd November 2001
- 1Surds2 marks
Write sqrt(50) in the form a sqrt(b), where b is as small as possible.
- 2Drawing Quadratic Graphs2 marks
For the curve y = x^2 + 7x - 8, work out y when x = -4.
- 3Repeated Percentage Change3 marks
A town's population is 22000 and grows by 6% each year. Work out the population after 6 years, to the nearest whole number.
- 4Sector Areas and Arc Lengths3 marks
A sector of a circle has radius 5 cm and angle 60°. Work out its area, to 1 decimal place.
- 5Conditional Probability3 marks
15 students study Spanish and 11 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
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