Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
- 1Velocity Time Graphs2 marks
A train slows steadily from 19 m/s to rest in 10 seconds. Work out its deceleration.
- 2The Cosine Rule3 marks
A triangle has sides of 6 cm and 15 cm with an angle of 107° between them. Work out the third side, to 1 decimal place.
- 3Conditional Probability3 marks
A bag holds 3 red, 3 blue and 5 green counters. Two are taken without replacement. Given neither is green, what is the probability both are red?
- 4Histograms3 marks
On a histogram the bar for 50 < x <= 60 has a frequency density of 0.4. How many values are in that class?
- 5Bounds3 marks
A rectangle is 18 cm by 27 cm, each correct to the nearest cm. Work out the upper bound of its area.
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