Daily Practice · Higher Plus

Daily Practice - Higher Plus

Grades 8-9 - exam-stretch algebra, geometry and reasoning.

23rd October 2014

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

1
Velocity Time Graphs2 marks
A train slows steadily from 21 m/s to rest in 10 seconds. Work out its deceleration.
2
The Sine Rule3 marks
In triangle ABC, angle A is 53°, side a is 13 cm and side b is 8 cm. Work out the acute angle B, to 1 decimal place.
3
Conditional Probability3 marks
A bag holds 6 red and 7 blue counters. Two are taken without replacement. Given the first was red, what is the probability the second is blue?
4
Histograms3 marks
On a histogram the bar for 60 < x <= 80 has a frequency density of 0.4. How many values are in that class?
5
Surds3 marks
Simplify sqrt(50) + sqrt(72), giving your answer in the form a sqrt(b).

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