Evaluate and correct to two decimal places, 75.0785 - 34.624 + 9.83

• A. 30.60
• B. 50.29
• C. 50.28
• D. 30.63

On which of the following sea is coffee an important commodity?

• A. Rio de Janeiro to New York
• B. Sydney to Singapore
• C. Durban to Calcutta
• D. San Francisco to Yokohama

Use the information below on factors required during photosynthesis to answer the two questions

I. CO^2 II. Chlorophyll III. Water IV. ATP V NADPH^Use the information below on factors required during photosynthesis to answer the two questions

I. CO2 II. Chlorophyll III. Water IV. ATP V NADPH2.

Which of the above factors can be a limiting factor for the process to proceed?

• A. I and II only
• B. I and III only
• C. I and IV only
• D. I, III and IV only

(a) Without using mathematical tables or calculator, evaluate \(\frac{\frac{3}{2}\log 27 - 3\log 5\sqrt{5}}{\log 0.6}\)

(b) Two linear transformations A and B in the \(O_{xy}\) plane, are defined by :

\(A : (x, y) (x + 2y, -x + y)\)

\(B : (x, y) (2x + 3y, x + 2y)\).

(i) Write down the matrices A and B; (ii) Find the image of the point P(-2, 2) under the linear transformation A followed by B.

If P(2,3) and Q)2, 5) are points on a graph, calculate the length PQ

• A. 6 units
• B. 5 units
• C. 4 units
• D. 2 units

Four elements P, Q, R and S have 1, 2, 3, and 7 electrons in their outermost shells, respectively. The element which is likely to be a metal is

• A) P
• B) Q
• C) R
• D) S

The soil horizon that is not supportive of the growth of tree crops is?

• A. horizon A.
• B. horizon B
• C. horizon C
• D. horizon D

From the words or group of words lettered A to E below each of the following sentences, choose the word or group of words that is nearest in meaning to the underlined word or group of words.

As a result of the terrible sufferings he had undergone, he became verydespondent about the future

• A. mischievous
• B. agitated
• C. desperate
• D. hopeless

The following are chemical entities identifiable during qualitative analysis:

i. SO^2?₄

ii. H₃O⁺

iii. NH⁺⁴ iv. OH^?

Which of them can be detected by litmus paper?

• A) ii and iv only
• B) ii only
• C) i and iii only
• D) iv only

The approximate gradient between the point marked X and the trigonometrical station is

• A. 1:7
• B. 1:9
• C. 1:11
• D. 1:13