Mathematics Past Questions And Answers
Points X and Y are respectively 12m Nonh and 5m of point Z. Calculate XY
- A. 7m
- B. 12m
- C. 13m
- D. 17m
A function F is defined on the set R, of real numbers by \(f : x \to px^{2} + qx + 2\), where p and q are constants. If \(f(-2) = 0\) and \(f(1) = 3\), find \(f(-4)\).
View Discussion (0)WAEC 2008 THEORYFactorize 32x3 - 8xy2
- A. 4(4x + y)(2x - y)
- B. (16x - y)(2x + y)
- C. 8x(2x - y)
- D. 8x(2x + y)(2x - y)
If \(\int^3_0(px^2 + 16)dx\) = 129. Find the value of p.
- A. 9
- B. 8
- C. 7
- D. 6
In the diagram below, O is the center if the two concentric circle of radii 13cm and 10cm respectively. Find the area of the shaded portion in the sector with angle 1200 at the center
- A. \(\frac{1}{3}\pi cm^2\)
- B. \(\pi cm^2\)
- C. \(3\pi cm^2\)
- D. \(23\pi cm^2\)
If g(x) = √(1-x\(^2\)), find the domain of g(x)
- A. x< -1 or x > 1
- B. x ≤ -1 or x ≥ 1
- C. -1 ≤ x ≤ 1
- D. -1< x< 1
The marks scored by 4 students in Mathematics and Physics are ranked as shown in the table below
| Mathematics | 3 | 4 | 2 | 1 |
| Physics | 4 | 3 | 1 | 2 |
Calculate the Spearmann's rank correlation coefficient.
- A. 0.2
- B. 0.5
- C. 0.6
- D. 0.7
Factorize 2e2 - 3e + 1
- A. (2e-1) (e-1)
- B. (e+1) (2e+1)
- C. (2e+3) (e+2)
- D. (2e-3) (e-1)
| Age in years | 7 | 8 | 9 | 10 | 11 |
| No of pupils | 4 | 13 | 30 | 44 | 9 |
The table above shows the number of pupils in a class with respect to their ages. If a pie chart is constructed to represent the age, the angle corresponding to 8 years old is
- A. 48.6°
- B. 56.3°
- C. 46.8°
- D. 13°
The sum of the first n terms of a linear sequence is \(S_{n} = n^{2} + 2n\). Determine the general term of the sequence.
- A. n + 1
- B. 2n + 1
- C. 3n + 1
- D. 4n + 1