Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
- 1Bounds3 marks
x = 114 and y = 86, each correct to the nearest whole number. Work out the upper bound of x - y.
- 2Iteration3 marks
Use the iteration x(n+1) = cube root of (2x(n) + 5) with x(0) = 4. Work out x(1) to 3 decimal places.
- 3Velocity Time Graphs2 marks
A train slows steadily from 22 m/s to rest in 5 seconds. Work out its deceleration.
- 4The Cosine Rule3 marks
A triangle has sides 4 cm, 8 cm and 9 cm. Work out the angle opposite the 4 cm side, to 1 decimal place.
- 5Probability Equation Questions3 marks
A bag holds 6 red and n blue counters. The probability of taking a red is 6/11. Work out n.
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