Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
10th December 2017
- 1Bounds3 marks
x = 89 and y = 55, each correct to the nearest whole number. Work out the upper bound of x - y.
- 2Completing the Square3 marks
Write x^2 - 2x + 15 in the form (x + a)^2 + b.
- 3Velocity Time Graphs2 marks
A train slows steadily from 25 m/s to rest in 10 seconds. Work out its deceleration.
- 4The Cosine Rule3 marks
A triangle has sides 5 cm, 13 cm and 10 cm. Work out the angle opposite the 5 cm side, to 1 decimal place.
- 5Probability Equation Questions3 marks
A bag holds 8 red and n blue counters. The probability of taking a red is 4/7. Work out n.
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