Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

7th November 2009

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
SOHCAHTOA (Trigonometry)3 marks
A right-angled triangle has sides 9 cm, 12 cm and 15 cm. Work out the angle opposite the 9 cm side, to 1 decimal place.
2
Probability Trees3 marks
A bag holds 3 red and 8 blue counters. Two are taken without replacement. Work out the probability both are red.
3
Box Plots2 marks
A box plot has minimum 8, lower quartile 14, median 21, upper quartile 30 and maximum 37. Work out the interquartile range.
4
Reverse Percentages3 marks
A bill is £624 including VAT at 20%. Work out the amount before VAT.
5
Parallel and Perpendicular Lines3 marks
Work out the equation of the line parallel to y = -2x - 9 that passes through (5, -22).

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