Daily Practice · Higher Plus
Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
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4th December 2001
- 1Surds3 marks
Expand and simplify (3 + sqrt(6))(3 - sqrt(6)).
- 2Transforming Graphs y=f(x)3 marks
The point (6, 2) lies on y = f(x). Write down its image on y = f(x + 2).
- 3Direct and Inverse Proportion Depth3 marks
y is inversely proportional to x^2. When x = 4, y = 100. Work out y when x = 5.
- 4The Cosine Rule3 marks
A triangle has sides 4 cm, 13 cm and 12 cm. Work out the angle opposite the 4 cm side, to 1 decimal place.
- 5Probability Equation Questions3 marks
A bag holds 6 red and n blue counters. The probability of taking a red is 2/3. Work out n.
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