If \(\begin{vmatrix} 2 & 3 \\ 5 & 3x \end{vmatrix}\) = \(\begin{vmatrix} 4 & 1 \\ 3 & 2x \end{vmatrix}\), find the value of x.

• A. -6
• B. 6
• C. -12
• D. 12

Which of the following farming practices may be used to check soil erosion?

• A. Ploughing of land upslope
• B. Contour ploughing
• C. Bush burning
• D. Shifting cultivation

After the following sentence, a list of possible interpretations is given. Choose the interpretaion that is most appropriate for the sentence.

When Victor's father gave him a new car, he was lost for words. This means that victor

• A. did not like the car
• B. forgot to show gratitude
• C. was overwhelmed
• D. was not grateful

The national assembly, presidency and court which are inter-related and inter-dependent in our democracy constitute the

• A. tiers of government
• B. types of democracy
• C. forms of government
• D. arms of government

Agricultural productivity is low in Tropical Africa because of?

• A. sparse population and shortage of labour
• B. poor soil and unfavourable climate
• C. low technology and land fragmentation
• D. low demand and lack of credit facilities

A commodity is described as inferior when the

• A. income effect is negative
• B. income effect is positive
• C. substitution effect is negative
• D. substitution effect is positive

Read the extract and answer Questions

I will rather sue to be despised than to deceive so good a

commander with so slight, so drunken, and so indiscreet

an officer. Drunk! And speak parrot! And squabble!

swagger! Swear! And discourse fustian with one's own

shadow! a thou invisible spirit of wine, if thou hast no

name to be known by, let us call thee devil!

(Act II, Scene Three, lines 262-267)

The speaker is addressing

• A. Cassio
• B. Iago
• C. Othelo
• D. Roderigo

The Output will be a HIGH for any case when one or more inputs are one for a(an)

• A. OR gate
• B. AND gate
• C. NOR gate
• D. NOT gate

Mass of a crucible = 10g,

Mass of a crucible and soil before heating =29g

Mass of a crucible and soil after heating = 18g

From the information above, determine the percentage of water in the given soil sample?

• A. 20%
• B. 25%
• C. 40%
• D. 60%

A particle moves from point O along a straight line such that its acceleration at any time, t seconds is \(a = (4 - 2t) ms^{-2}\). At t = 0, its distance from O is 18 metres while its velocity is \(5 ms^{-1}\).

(a) At what time will the velocity be greatest?

(b) Calculate the : (i) time ; (ii) distance of the particle from O when the particle is momentarily at rest.