Daily Practice

Higher Plus

19th July 1953

5 questions · 14 marks · Grades 8-9 · 51 question types in this band

1
Bounds3 marks
x = 109 and y = 88, each correct to the nearest whole number. Work out the upper bound of x - y.
2
Inverse and Composite Functions3 marks
f(x) = 8x - 2. Work out the inverse function f^-1(x).
3
Velocity Time Graphs2 marks
A train slows steadily from 40 m/s to rest in 10 seconds. Work out its deceleration.
4
The Cosine Rule3 marks
A triangle has sides 12 cm, 16 cm and 13 cm. Work out the angle opposite the 12 cm side, to 1 decimal place.
5
Probability Equation Questions3 marks
A bag holds 2 red and n blue counters. The probability of taking a red is 1/4. Work out n.

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