Daily Practice

Higher

4th August 1979

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 6, y = 324. Work out y when x = 4.
2
Finding the Area of Any Triangle3 marks
A triangle has sides of 15 cm and 17 cm with an angle of 75° between them. Work out its area, to 1 decimal place.
3
Probability Trees3 marks
5 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Box Plots2 marks
A box plot has minimum 14, lower quartile 21, median 31, upper quartile 38 and maximum 46. Work out the interquartile range.
5
Fractional and Negative Indices3 marks
Work out 100^(3/2).

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