The graph of the quadratic expression

• A. y=x²+x-2
• B. y=x²-x+2
• C. y=x²-x-2
• D. y=x+x+2

Two chords PQ and RS of a circle intersected at right angles at a point inside the circle. If ∠QPR = 35°, find ∠PQS

• A. 35
• B. 45
• C. 55
• D. 70

The values of x when y = -1 are approximately

• A. -10 and 2.0
• B. -1.3 and 2.3
• C. -0.6 and 2.6
• D. -0.6 and 1.6

Find the value of X if \(cos x = \frac{5}{8}\) for \(0^o\le X\le 180^o\)

• A. 141.3^o
• B. 128.7^o
• C. 51.3^o
• D. 48.7^o

If log\(_{10}\) a = 4; what is a?

• A. 0.4
• B. 40
• C. 400
• D. 10000

A box contain 2 white and 3 blue identical balls. If two balls are picked at random, one after the other, without replacement, what is the probability of picking two balls of different colours?

• A. \(\frac{5}{25}\)
• B. \(\frac{7}{20}\)
• C. \(\frac{3}{5}\)
• D. \(\frac{2}{3}\)

What value of k makes the given expression a perfect square m\(^2\) - 8m + k = 0

• A.2
• B.4
• C.8
• D.16

In the diagram, PQ||SR. Find the value of Z

• A. 30°
• B. 40°
• C. 45°
• D. 90°

The table below shows the number of eggs laid by the chickens in a man's farm in a year.

(a) Draw a cumulative frequency curve for the distribution.

(b) Use your graph to find the interquartile range.

(c) If a woman buys a chicken from the farm, what is the probability that the chicken lays at least 60 eggs in a year?

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. \(23\pi cm^2\)