Daily Practice

Higher Plus

21st February 1964

5 questions · 13 marks · Grades 8-9 · 51 question types in this band

1
Histograms2 marks
On a histogram, a 5-wide bar and a 20-wide bar have the same frequency density of 2.5. How many more values are in the wider class?
2
Surds3 marks
Rationalise the denominator of 84/sqrt(7), giving your answer in its simplest form.
3
Proof2 marks
In an algebraic proof, how would you write a multiple of 7 in terms of an integer n?
4
Velocity Time Graphs3 marks
A cyclist speeds up steadily from 4 m/s to 10 m/s over 10 seconds. Use the area under the velocity-time graph to find the distance travelled.
5
Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = 4a + 4b and vector RS = 8a + 8b. What does this show about PQ and RS?

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