Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
29th October 2017
- 1Bounds3 marks
x = 127 and y = 51, each correct to the nearest whole number. Work out the upper bound of x - y.
- 2The Nth Term of a Quadratic Sequence3 marks
Work out the nth term of the quadratic sequence -5, -4, -1, 4, ...
- 3Direct and Inverse Proportion Depth3 marks
y is inversely proportional to x^2. When x = 5, y = 64. Work out y when x = 4.
- 4Finding the Area of Any Triangle3 marks
A triangle has sides of 11 cm and 15 cm and an area of 58.34 cm^2. Work out the acute angle between those two sides, to the nearest degree.
- 5Probability Equation Questions3 marks
A bag holds 10 counters, r of them red. Two are taken without replacement and P(both red) = 1/45. Work out r.
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