Daily Practice · Higher Plus

Daily Practice - Higher Plus

25th February 1992

5 questions · 15 marks · Grades 8-9 · 51 question types in this band

1
Surds3 marks
Expand and simplify (6 + sqrt(7))(6 - sqrt(7)).
2
Transforming Graphs y=f(x)3 marks
The point (-4, 6) lies on y = f(x). Write down its image on y = f(x + 4).
3
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^3. When x = 3, y = 108. Work out y when x = 2.
4
The Cosine Rule3 marks
A triangle has sides 19 cm, 7 cm and 15 cm. Work out the angle opposite the 19 cm side, to 1 decimal place.
5
Probability Equation Questions3 marks
A bag holds 6 red and n blue counters. The probability of taking a red is 3/7. Work out n.

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