Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
26th December 2014
- 1Surds3 marks
Rationalise the denominator of 99/sqrt(11), giving your answer in its simplest form.
- 2Inverse and Composite Functions3 marks
f(x) = 7x - 4. Work out the inverse function f^-1(x).
- 3Velocity Time Graphs2 marks
A train slows steadily from 24 m/s to rest in 8 seconds. Work out its deceleration.
- 4The Cosine Rule3 marks
A triangle has sides 16 cm, 13 cm and 6 cm. Work out the angle opposite the 16 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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