Daily Practice · Higher Plus

Daily Practice - Higher Plus

Grades 8-9 - exam-stretch algebra, geometry and reasoning.

28th May 2003

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

1
Bounds3 marks
A rectangle is 21 cm by 29 cm, each correct to the nearest cm. Work out the upper bound of its area.
2
Quadratic Inequalities3 marks
Solve x^2 + 9x + 8 > 0.
3
Direct and Inverse Proportion Depth3 marks
y is directly proportional to sqrt(x). When x = 4, y = 4. Work out y when x = 25.
4
The Cosine Rule3 marks
A triangle has sides 20 cm, 9 cm and 16 cm. Work out the angle opposite the 20 cm side, to 1 decimal place.
5
Probability Equation Questions3 marks
A bag holds 5 red and n blue counters. The probability of taking a red is 5/7. Work out n.

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