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Mathematics Past Questions and Answers

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Mathematics Questions

Question 166:

In the diagram above MN is a chord of a circle KMN centre O and radius 10cm. If < MON = 140°, find, to the nearest cm, the length of the chord MN.

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A 10cm
B 18cm
C 17cm
D 12cm

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Question 167:

If m * n = [mn − nm] for m, n belong to R, evaluate − 3 * 4

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A 3
B 4
C 5
D 6

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Question 168:

Factorize completely x2 + 12xy + y2 + 3x + 3y - 18

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A (x + y + 6)(x + y -3)
B (x - y - 6)(x - y + 3)
C (x - y + 6)(x - y - 3)
D (x + y - 6)(x + y + 3)

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Question 169:

Make S the subject of the relation<br/>p = s + \(\frac{sm^2}{nr}\)

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A S = \(\frac{nrp}{nr + m^2}\)
B S = nr + \(\frac{m^2}{mrp}\)
C S = \(\frac{nrp}{mr}\) + m<sup style='font-size: smaller;'>2</sup>
D S = \(\frac{nrp}{nr}\) + m<sup style='font-size: smaller;'>2</sup>

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Question 170:

In how many ways can the word MATHEMATICS be arranged?

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A \(\frac{11!}{9!2!}\)
B \(\frac{11!}{9!2!2!}\)
C \(\frac{11!}{2!2!2!}\)
D \(\frac{11!}{2!2!}\)

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