Question 41:

• WAEC 2017

If \((2x^{2} - x - 3)\) is a factor of \(f(x) = 2x^{3} - 5x^{2} - x + 6\), find the other factor

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

Question 42:

• WAEC 2017

If P = \({n^{2} + 1: n = 0,2,3}\) and Q = \({n + 1: n = 2,3,5}\), find P\(\cap\) Q.

A. {5, 10}
B. {4, 6}
C. {1, 3}
D. { }

Question 43:

• WAEC 2017

Face	1	2	3	4	5	6
Frequency	12	18	y	30	2y	45

Given the table above as the results of tossing a fair die 150 times. Find the probability of obtaining a 5.

A. \(\frac{1}{10}\)
B. \(\frac{1}{6}\)
C. \(\frac{1}{5}\)
D. \(\frac{3}{10}\)

Question 44:

• WAEC 2017

Face	1	2	3	4	5	6
Frequency	12	18	y	30	2y	45

Given the table above as the result of tossing a fair die 150 times, find the mode.

A. 3
B. 4
C. 5
D. 6

Question 45:

• WAEC 2017

Given that a = 5i + 4j and b = 3i + 7j, evaluate (3a - 8b).

A. 9i + 44j
B. -9i + 44j
C. -9i - 44j
D. 9i - 44j