Daily Practice

Higher

26th July 1986

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Bounds2 marks
A mass is 380 kg, correct to the nearest 10. Write down the lower bound.
2
Trigonometric and Exponential Graphs2 marks
The curve y = 2^x is drawn. Work out y when x = 3, and write down where the curve crosses the y-axis.
3
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 2, y = 20. Work out y when x = 9.
4
Vectors3 marks
a is the column vector (4, -5) and b is (-3, -2). Work out 4a - 5b as a column vector.
5
Probability Trees3 marks
6 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.

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