Daily Practice

Higher Plus

16th January 1989

5 questions · 14 marks · Grades 8-9 · 51 question types in this band

1
Histograms2 marks
On a histogram, a 10-wide bar and a 40-wide bar have the same frequency density of 3. How many more values are in the wider class?
2
Bounds3 marks
A block has mass 740 g (to the nearest 10 g) and volume 7 cm^3 (to the nearest cm^3). Work out the upper bound of its density, to 2 decimal places.
3
Factorising Harder Quadratics3 marks
Solve 12x^2 + 5x - 25 = 0.
4
Velocity Time Graphs3 marks
A cyclist speeds up steadily from 8 m/s to 19 m/s over 12 seconds. Use the area under the velocity-time graph to find the distance travelled.
5
3d Pythagoras and Trigonometry3 marks
A cuboid measures 12 cm by 15 cm by 4 cm. Work out the length of the longest diagonal inside it, to 1 decimal place.

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