Higher Plus
11th November 1983
- 1Velocity Time Graphs2 marks
A train slows steadily from 29 m/s to rest in 10 seconds. Work out its deceleration.
- 2The Cosine Rule3 marks
A triangle has sides of 6 cm and 9 cm with an angle of 133° between them. Work out the third side, to 1 decimal place.
- 3Conditional Probability3 marks
A bag holds 6 red, 4 blue and 4 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 10 < x <= 15 has a frequency density of 1.5. How many values are in that class?
- 5Surds3 marks
Rationalise the denominator of 10/sqrt(2), giving your answer in its simplest form.
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