Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
27th November 2008
- 1Surds3 marks
Simplify sqrt(72) + sqrt(50), giving your answer in the form a sqrt(b).
- 2Transforming Graphs y=f(x)3 marks
The point (1, 6) lies on y = f(x). Write down its image on y = f(x - 2).
- 3Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^3. When x = 4, y = 192. Work out y when x = 3.
- 4The Cosine Rule3 marks
A triangle has sides 7 cm, 7 cm and 6 cm. Work out the angle opposite the 7 cm side, to 1 decimal place.
- 5Probability Equation Questions3 marks
A bag holds 3 red and n blue counters. The probability of taking a red is 3/11. Work out n.
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