Daily Practice · Higher Plus

Daily Practice - Higher Plus

28th February 1992

5 questions · 13 marks · Grades 8-9 · 51 question types in this band

1
Proof of the Circle Theorems2 marks
In a circle theorem proof, a step uses the fact that a radius is drawn to the midpoint of a chord. State the reason being quoted.
2
Probability Equation Questions3 marks
A bag holds 10 counters, r of them red. Two are taken without replacement and P(both red) = 1/3. Work out r.
3
Histograms3 marks
A histogram has two bars: one 5 units wide with frequency density 2.5, one 5 units wide with density 3.5. How many values in total?
4
Surds3 marks
Rationalise the denominator of 70/sqrt(7), giving your answer in its simplest form.
5
Proof2 marks
In an algebraic proof, how would you write a multiple of 3 in terms of an integer n?

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