Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
25th October 2012
- 1Surds3 marks
Simplify sqrt(12) + sqrt(3), giving your answer in the form a sqrt(b).
- 2Transforming Graphs y=f(x)3 marks
The point (1, 1) lies on y = f(x). Write down its image on y = f(x) + 1.
- 3Velocity Time Graphs2 marks
A train slows steadily from 40 m/s to rest in 5 seconds. Work out its deceleration.
- 4Finding the Area of Any Triangle3 marks
A triangle has sides of 9 cm and 7 cm and an area of 15.75 cm^2. Work out the acute angle between those two sides, to the nearest degree.
- 5Probability Equation Questions3 marks
A bag holds 12 counters, r of them red. Two are taken without replacement and P(both red) = 5/33. Work out r.
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