Daily Practice

Higher

17th October 1978

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Capture Recapture3 marks
20 newts are marked and released. Later 27 are caught, of which 3 are marked. Estimate the population.
2
Surds2 marks
Write sqrt(12) in the form a sqrt(b), where b is as small as possible.
3
Parallel and Perpendicular Lines3 marks
Work out the equation of the line parallel to y = -4x - 9 that passes through (2, -2).
4
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 5 : 8. Write y in terms of x.
5
SOHCAHTOA (Trigonometry)3 marks
A right-angled triangle has sides 20 cm, 21 cm and 29 cm. Work out the angle opposite the 20 cm side, to 1 decimal place.

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