Daily Practice

Higher Plus

12th October 1990

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 = 4a - 5b and vector RS = 12a - 15b. What does this show about PQ and RS?
2
Probability Equation Questions3 marks
The probability of winning a game is 3/5. A player expects 18 wins. How many games did they play?
3
Histograms3 marks
A histogram has two bars: one 5 units wide with frequency density 1.5, one 10 units wide with density 0.8. How many values in total?
4
Surds3 marks
Rationalise the denominator of 21/sqrt(7), giving your answer in its simplest form.
5
Rearranging Harder Formulae3 marks
Make x the subject of 8x + 8 = y(x + 8).

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