Daily Practice

Higher Plus

18th April 1978

5 questions · 15 marks · Grades 8-9 · 51 question types in this band

1
Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = a - 4b and vector RS = 5a - 20b. What does this show about PQ and RS?
2
Probability Equation Questions3 marks
The probability of winning a game is 3/4. A player expects 42 wins. How many games did they play?
3
Histograms3 marks
A histogram has two bars: one 20 units wide with frequency density 2, one 25 units wide with density 3.5. How many values in total?
4
Surds3 marks
Expand and simplify (9 + sqrt(6))(9 - sqrt(6)).
5
Iteration3 marks
Use the iteration x(n+1) = cube root of (9x(n) + 6) with x(0) = 4. Work out x(1) to 3 decimal places.

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