Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
24th November 2021
- 1Histograms2 marks
On a histogram, a 10-wide bar and a 20-wide bar have the same frequency density of 1.5. How many more values are in the wider class?
- 2Bounds3 marks
A rectangle is 20 cm by 29 cm, each correct to the nearest cm. Work out the upper bound of its area.
- 3Completing the Square3 marks
Write x^2 - 12x - 5 in the form (x + a)^2 + b.
- 4Velocity Time Graphs3 marks
A cyclist speeds up steadily from 5 m/s to 10 m/s over 10 seconds. Use the area under the velocity-time graph to find the distance travelled.
- 53d Pythagoras and Trigonometry3 marks
A cuboid measures 11 cm by 14 cm by 6 cm. Work out the length of the longest diagonal inside it, to 1 decimal place.
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