Mathematics Past Questions

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996

The graph is that of the quadratic expression

A. \(y=x^2 + x - 2\)
B. \(y=x^2 - x + 2\)
C. \(y=x^2 - x - 2\)
D. \(y=x + x + 2\)
E. \(y=x^2 - 2 x - 2\)

View Answer & Discuss (4) WAEC 1998

997

The values of x when y = -1 are approximately

A. -10 and 2.0
B. -1.3 and 2.3
C. -0.6 and 2.6
D. -0.6 and 1.6
E. 1.6 and 1.6

View Answer & Discuss (3) WAEC 1998

998

A box contain 2 white and 3 blue identical balls. If two balls are picked at random, one after the other, without replacement, what is the probability of picking two balls of different colours?

A. \(\frac{5}{25}\)
B. \(\frac{7}{20}\)
C. \(\frac{3}{5}\)
D. \(\frac{2}{3}\)
E. \(\frac{5}{6}\)

View Answer & Discuss (7) WAEC 1998

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999

In ∆PQR. ∠PQR is a right angle. |QR| = 2cm and ∠PRQ = 60o. Find |PR|

A. 4√3cm
B. 4cm
C. 2√3cm
D. \(\frac{4}{3}cm\)
E. 1cm

View Answer & Discuss (10) WAEC 1998

1000

In the diagram, PQ||SR. Find the value of Z

A. 30^o
B. 40^o
C. 45^o
D. 90^o
E. 120^o

View Answer & Discuss (8) WAEC 1998

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