The pie chart below shows the statistical distribution of 80 students in five subjects in an examination. Calculate how many student offer Mathematics.

• A. 30
• B. 11
• C. 50
• D. 20

Cos 65° has the same value as

• A. Sin 65°
• B. Cos 25°
• C. Cos 115°
• D. Cos 295°

An amount of N550,000.00 was realized when a principal, x was saved at 2% simple interest for 5 years. Find the value of x

• A. N470,000.00
• B. N480,000.00
• C. N490,000.00
• D. N500,000.00

8, 18, 10,14, 18, 11, 13, 14, 13, 17, 15, 8, 16, and 13

The following are scores obtained by some students in a test. How many students scored above the mean score?

• A. 10
• B. 9
• C. 8
• D. 7

Let '*' and '^' be two binary operations such that a * b = a\(^2\)b and a ^ b = 2a + b. Find (-4 * 2) ^ (7 * -1).

• A. -49
• B. 64
• C. 113
• D. 15

(a) Copy and complete the following table of values for the relation \(y = x^{2} - 2x - 5\)

(b) Draw the graph of the relation \(y = x^{2} - 2x - 5\); using a scale of 2 cm to 1 unit on the x- axis, and 2 cm to 2 units on the y- axis.

(c) Using the same axes, draw the graph of \(y = 2x + 3\).

(d) Obtain in the form \(ax^{2} + bx + c = 0\) where a, b and c are integers, the equation which is satisfied by the x- coordinate of the points of intersection of the two graphs.

(e) From your graphs, determine the roots of the equation obtained in (d) above.

If the distance between the points (x, 3) and (-x, 2) is 5. Find x

• A. 6.0
• B. 2.5
• C. √6
• D. √3

If \(\frac{y-3}{2}<\frac{2y-1}{3}\), which of the following is true?

• A. y > 7
• B. y < -7
• C. y > -7
• D. y < 7

Simplify 5\(\sqrt{18}\) - 3\(\sqrt{72}\) + 4\(\sqrt{50}\)

• A. 17\(\sqrt{4}\)
• B. 4\(\sqrt{17}\)
• C. 17\(\sqrt{2}\)
• D. 12\(\sqrt{4}\)

Three consecutive terms of a geometric progression are give as n - 2, n and n + 3. Find the common ratio

• A. 3/2
• B. 2/3
• C. 1/2
• D. 1/4