Daily Practice

Higher Plus

2nd August 1979

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

1
Surds3 marks
Simplify sqrt(50) + sqrt(50), giving your answer in the form a sqrt(b).
2
Transforming Graphs y=f(x)3 marks
The point (-2, 0) lies on y = f(x). Write down its image on y = f(x - 3).
3
Direct and Inverse Proportion Depth3 marks
y is inversely proportional to x^2. When x = 3, y = 25. Work out y when x = 5.
4
The Cosine Rule3 marks
A triangle has sides 12 cm, 6 cm and 16 cm. Work out the angle opposite the 12 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 3/5. Work out n.

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