Daily Practice - Higher Plus
31st March 1994
- 13d Pythagoras and Trigonometry3 marks
A cuboid measures 6 cm by 3 cm by 7 cm. Work out the length of the longest diagonal inside it, to 1 decimal place.
- 2Probability Equation Questions3 marks
A bag holds 2 red and n blue counters. The probability of taking a red is 1/4. Work out n.
- 3Histograms2 marks
On a histogram, a 4-wide bar and a 16-wide bar have the same frequency density of 1.5. How many more values are in the wider class?
- 4Surds3 marks
Simplify sqrt(80) + sqrt(45), giving your answer in the form a sqrt(b).
- 5Transforming Graphs y=f(x)3 marks
The point (4, 2) lies on y = f(x). Write down its image on y = f(-x).
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