Higher Plus
8th January 1953
- 1Surds3 marks
Simplify sqrt(18) + sqrt(2), giving your answer in the form a sqrt(b).
- 2Iteration3 marks
Use the iteration x(n+1) = cube root of (5x(n) + 6) with x(0) = 3. Work out x(1) to 3 decimal places.
- 3Velocity Time Graphs2 marks
A train slows steadily from 26 m/s to rest in 8 seconds. Work out its deceleration.
- 4Finding the Area of Any Triangle3 marks
A triangle has sides of 12 cm and 12 cm and an area of 36.00 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) = 1/15. Work out r.
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