Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
14th March 2023
- 1Surds3 marks
Expand and simplify (6 + sqrt(3))(6 - sqrt(3)).
- 2Trigonometric and Exponential Graphs2 marks
The curve y = cos x° is drawn for 0 <= x <= 360. Write down the value of y when x = 90.
- 3Velocity Time Graphs2 marks
A train slows steadily from 33 m/s to rest in 4 seconds. Work out its deceleration.
- 4The Cosine Rule3 marks
A triangle has sides 22 cm, 11 cm and 14 cm. Work out the angle opposite the 22 cm side, to 1 decimal place.
- 5Probability Equation Questions3 marks
A bag holds 6 red and n blue counters. The probability of taking a red is 6/11. Work out n.
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