Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
7th January 1999
- 1Surds3 marks
Simplify sqrt(50) + sqrt(8), giving your answer in the form a sqrt(b).
- 2Rearranging Harder Formulae3 marks
Make x the subject of 7x + 5 = y(x + 5).
- 3Velocity Time Graphs2 marks
A train slows steadily from 35 m/s to rest in 4 seconds. Work out its deceleration.
- 4Finding the Area of Any Triangle3 marks
A triangle has sides of 15 cm and 6 cm and an area of 45.00 cm^2. Work out the acute angle between those two sides, to the nearest degree.
- 5Probability 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.
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