Higher Plus
- 1Bounds3 marks
A car covers 870 m (to the nearest 10 m) in 9 s (to the nearest second). Work out the lower bound of its speed, to 2 decimal places.
- 2Proof2 marks
In an algebraic proof, how would you write two consecutive odd numbers in terms of an integer n?
- 3Velocity Time Graphs2 marks
A train slows steadily from 32 m/s to rest in 8 seconds. Work out its deceleration.
- 4The Cosine Rule3 marks
A triangle has sides 9 cm, 10 cm and 9 cm. Work out the angle opposite the 9 cm side, to 1 decimal place.
- 5Probability Equation Questions3 marks
A bag holds 7 red and n blue counters. The probability of taking a red is 7/13. Work out n.
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