Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
9th April 1998
- 13d Pythagoras and Trigonometry3 marks
A cuboid measures 8 cm by 5 cm by 13 cm. Work out the length of the longest diagonal inside it, to 1 decimal place.
- 2Probability Equation Questions3 marks
A bag holds 7 red and n blue counters. The probability of taking a red is 7/13. Work out n.
- 3Histograms3 marks
A histogram has two bars: one 10 units wide with frequency density 1.2, one 10 units wide with density 1.4. How many values in total?
- 4Surds3 marks
Simplify sqrt(18) + sqrt(98), giving your answer in the form a sqrt(b).
- 5Completing the Square3 marks
Work out the coordinates of the turning point of y = x^2 - 16x + 14.
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