Daily Practice

Higher Plus

13th February 1977

5 questions · 14 marks · Grades 8-9 · 51 question types in this band

1
Bounds3 marks
x = 95 and y = 17, each correct to the nearest whole number. Work out the upper bound of x - y.
2
Trigonometric and Exponential Graphs2 marks
The curve y = sin x° is drawn for 0 <= x <= 360. Write down the value of y when x = 270.
3
Direct and Inverse Proportion Depth3 marks
y is directly proportional to sqrt(x). When x = 36, y = 36. Work out y when x = 81.
4
The Cosine Rule3 marks
A triangle has sides 7 cm, 7 cm and 11 cm. Work out the angle opposite the 7 cm side, to 1 decimal place.
5
Probability Equation Questions3 marks
A bag holds 8 red and n blue counters. The probability of taking a red is 1/2. Work out n.

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