Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
20th March 2016
- 1Bounds3 marks
x = 185 and y = 104, each correct to the nearest whole number. Work out the upper bound of x - y.
- 2Trigonometric and Exponential Graphs2 marks
The curve y = sin x° is drawn for 0 <= x <= 360. Write down the value of y when x = 360.
- 3Direct and Inverse Proportion Depth3 marks
y is directly proportional to sqrt(x). When x = 36, y = 54. Work out y when x = 4.
- 4The Cosine Rule3 marks
A triangle has sides 11 cm, 13 cm and 13 cm. Work out the angle opposite the 11 cm side, to 1 decimal place.
- 5Probability Equation Questions3 marks
A bag holds 4 red and n blue counters. The probability of taking a red is 4/9. Work out n.
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