Daily Practice

Higher Plus

9th September 1984

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

1
Histograms3 marks
A histogram has two bars: one 5 units wide with frequency density 2, one 20 units wide with density 1.4. How many values in total?
2
Bounds3 marks
x = 115 and y = 36, each correct to the nearest whole number. Work out the upper bound of x - y.
3
Inverse and Composite Functions3 marks
f(x) = 3x + 4 and g(x) = 5x + 8. Work out fg(3).
4
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 125. Work out the positive value of x when y = 125.
5
3d Pythagoras and Trigonometry3 marks
A cuboid measures 9 cm by 13 cm by 13 cm. Work out the length of the longest diagonal inside it, to 1 decimal place.

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