Waec Mathematics 2006 Past Questions and Answers

Question 11:

• WAEC 2006

If tan y = 0.404, where y is acute, find cos 2y

A. 0.035
B. 0.719
C. 0.808
D. 0.927

Question 12:

• WAEC 2006

The ratio of boys to girls in a class is 5:3. Find the probability of selecting at random, a girl from the class

A. \(\frac{1}{8}\)
B. \(\frac{1}{3}\)
C. \(\frac{3}{8}\)
D. \(\frac{3}{5}\)

Question 13:

• WAEC 2006

\(\begin{array}{c|c} x & 1 & 4 & p \\ \hline y & 0.5 & 1 & 2.5\end{array}\). The table above satisfies the relation y = k\(\sqrt{x}\), where k is a positive constant. Find the value of K.

A. 0.5
B. 1
C. 1.5
D. 2

Question 14:

• WAEC 2006

\(\begin{array}{c|c} x & 1 & 4 & p \\ \hline y & 0.5 & 1 & 2.5\end{array}\). The table below satisfies the relation y - k\(\sqrt{x}\), where k is a positive constant. Find the value of P,

A. 2
B. 4
C. 10
D. 25

Question 15:

• WAEC 2006

What must be added to x² - 3x to make it a perfect square?

A. \(\frac{9}{4}\)
B. \(\frac{9}{2}\)
C. 6
D. 9