Daily Practice · Higher Plus

Daily Practice - Higher Plus

20th April 1993

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

1
Surds3 marks
Expand and simplify (2 + sqrt(2))(2 - sqrt(2)).
2
Inverse and Composite Functions3 marks
f(x) = 6x + 3 and g(x) = 2x + 2. Work out fg(6).
3
Velocity Time Graphs2 marks
A train slows steadily from 29 m/s to rest in 8 seconds. Work out its deceleration.
4
The Cosine Rule3 marks
A triangle has sides 21 cm, 9 cm and 15 cm. Work out the angle opposite the 21 cm side, to 1 decimal place.
5
Probability Equation Questions3 marks
A bag holds 3 red and n blue counters. The probability of taking a red is 3/10. Work out n.

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