Daily Practice · Higher Plus

Daily Practice - Higher Plus

18th April 1995

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

1
Velocity Time Graphs2 marks
A train slows steadily from 30 m/s to rest in 5 seconds. Work out its deceleration.
2
Finding the Area of Any Triangle3 marks
A triangle has sides of 14 cm and 15 cm and an area of 52.50 cm^2. Work out the acute angle between those two sides, to the nearest degree.
3
Probability Equation Questions3 marks
A bag holds 8 counters, r of them red. Two are taken without replacement and P(both red) = 3/28. Work out r.
4
Histograms3 marks
On a histogram the bar for 40 < x <= 60 has a frequency density of 1.5. How many values are in that class?
5
Surds3 marks
Expand and simplify (3 + sqrt(7))(3 - sqrt(7)).

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