Mathematics 2003 Waec Past Questions and Answers

Question 26 :

• WAEC 2003

Find the values of x for which \( \frac{1}{2x^2 - 13x +15} \) is not defined,

A. 5 or \( \frac{3}{2} \)
B. 1 or \( \frac{15}{13} \)
C. 2 or 15
D. 13 or 15

Question 27 :

• WAEC 2003

In the diagram, \(P\hat{Q}S = 65^o, R\hat{P}S = 40^2\hspace{1mm}and\hspace{1mm}Q\hat{S}R=20^o\hspace{1mm}P\hat{S}Q\)

A. 85^o
B. 60^o
C. 55^o
D. 45^o

Question 28 :

• WAEC 2003

Evaluate \((111_{two})^2 - (101_{two})^2\)

A. 10_two
B. 100_two
C. 1100_two
D. 11000_two

Question 29 :

• WAEC 2003

Given that x ≅ 0.0102 correct to 3 significant figures, which of the following cannot be the actual value of x?

A. 0.01014
B. 0.01021
C. 0.01015
D. 0.01016

Question 30 :

• WAEC 2003

If \(\frac{3^{(1-n)}}{9^{-2n}}=\frac{1}{9}\) find n

A. \(-\frac{3}{2}\)
B. \(\frac{1}{3}\)
C. -1
D. -3