Daily Practice

Higher Plus

15th February 1984

5 questions · 14 marks · Grades 8-9 · 51 question types in this band

1
Velocity Time Graphs2 marks
A train slows steadily from 18 m/s to rest in 5 seconds. Work out its deceleration.
2
Finding the Area of Any Triangle3 marks
A triangle has sides of 12 cm and 13 cm and an area of 78.00 cm^2. Work out the acute angle between those two sides, to the nearest degree.
3
Probability Equation Questions3 marks
A bag holds 6 counters, r of them red. Two are taken without replacement and P(both red) = 2/5. Work out r.
4
Histograms3 marks
On a histogram the bar for 30 < x <= 35 has a frequency density of 0.4. How many values are in that class?
5
Bounds3 marks
A rectangle is 22 cm by 22 cm, each correct to the nearest cm. Work out the upper bound of its area.

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