Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
11th April 2021
- 1Bounds3 marks
x = 69 and y = 19, each correct to the nearest whole number. Work out the upper bound of x - y.
- 2Quadratic Inequalities3 marks
Solve x^2 + 3x + 2 > 0.
- 3Direct and Inverse Proportion Depth3 marks
y is directly proportional to sqrt(x). When x = 25, y = 35. Work out y when x = 16.
- 4Finding the Area of Any Triangle3 marks
A triangle has sides of 14 cm and 13 cm and an area of 78.81 cm^2. Work out the acute angle between those two sides, to the nearest degree.
- 5Probability Equation Questions3 marks
A bag holds 7 counters, r of them red. Two are taken without replacement and P(both red) = 1/7. Work out r.
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