Daily Practice

Higher Plus

20th October 1981

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

1
Surds3 marks
Expand and simplify (4 + sqrt(5))(4 - sqrt(5)).
2
The Nth Term of a Quadratic Sequence3 marks
Work out the nth term of the quadratic sequence 17, 34, 59, 92, ...
3
Velocity Time Graphs2 marks
A train slows steadily from 32 m/s to rest in 10 seconds. Work out its deceleration.
4
The Cosine Rule3 marks
A triangle has sides 13 cm, 8 cm and 15 cm. Work out the angle opposite the 13 cm side, to 1 decimal place.
5
Probability Equation Questions3 marks
A bag holds 8 red and n blue counters. The probability of taking a red is 8/13. Work out n.

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