Daily Practice · Higher Plus

Daily Practice - Higher Plus

28th April 1995

5 questions · 15 marks · Grades 8-9 · 51 question types in this band

1
Surds3 marks
Rationalise the denominator of 21/sqrt(3), giving your answer in its simplest form.
2
Completing the Square3 marks
Write x^2 + 4x + 5 in the form (x + a)^2 + b.
3
Direct and Inverse Proportion Depth3 marks
y is directly proportional to sqrt(x). When x = 16, y = 16. Work out y when x = 36.
4
Finding the Area of Any Triangle3 marks
A triangle has sides of 6 cm and 12 cm and an area of 36.00 cm^2. Work out the acute angle between those two sides, to the nearest degree.
5
Probability Equation Questions3 marks
A bag holds 11 counters, r of them red. Two are taken without replacement and P(both red) = 2/11. Work out r.

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