Daily Practice - Higher Plus
22nd September 1993
- 1Histograms3 marks
A histogram has two bars: one 5 units wide with frequency density 0.4, one 10 units wide with density 1.4. How many values in total?
- 2Bounds3 marks
A rectangle is 11 cm by 9 cm, each correct to the nearest cm. Work out the upper bound of its area.
- 3Algebraic Fractions3 marks
Simplify (x^2 + 5x + 4)/(x + 4).
- 4Velocity Time Graphs2 marks
On a velocity-time graph a car speeds up in a straight line from 3 m/s to 33 m/s over 20 seconds. Work out the acceleration.
- 53d Pythagoras and Trigonometry3 marks
A cuboid measures 7 cm by 9 cm by 10 cm. Work out the length of the longest diagonal inside it, to 1 decimal place.
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