Past Questions And Answers
(a) Find the derivative of \(4x-\frac{7}{x^2}\)with respect to \(x\), fromfirstprinciple.
(b) Given that tan \(P =\frac{3}{x - 1}\) and tan \(Q\) =\frac{2}{x + 1}\), find tan \(( P - Q )\)
View Discussion (0)WAEC 2023 THEORYRusting of iron is an example of
- A. deliquescence
- B. decomposition
- C. displacement reaction
- D. redox reaction
The linear scale of a map is important in that it enables the users to conveniently measure?
- A. areas of volumes
- B. distances and areas
- C. volumes and directions
- D. directions and distances
In general, a file is basically a collection of all related______.
- A. Rows & Columns
- B. Fields
- C. Database
- D. Records
In UITH, Dr Steve has worked more night shift than Dr. Greg who has worked five night shifts. Dr Okon has worked fifteen night shifts more than Dr. Steve and Dr. Greg combined.Dr. Uche has worked eight night shifts less than Dr. Steve. How many night shifts has Dr. Steve worked?
- A) Ten
- B) Nine
- C) Eight
- D) Seven
(a) Mention the chemical substance manufactured starting from each of the foirownc sets of materials:
(i) sugar and yeast;
(ii) ammonia, air and water;
(iii) vegetable oil and caustic alkali.
(b) State one air pollutant generated during the manufacture of fertilizers.
View Discussion (0)WAEC 1995 THEORYDehydration of ethanol produces
- A. ethanoic acid
- B. propan-1,2,3-triol
- C. ethene
- D. ethanal
Emeka Manufacturing Company (Extract) Manufacturing Account. Direct material.....................N5 000 Direct labour.......................N4 500 Direct expenses.....................N3 000 Factory overhead....................N2 500 Selling distribution................N1 500 Calculating the production cost?
- A. N16500
- B. N15 000
- C. N14 000
- D. N12 500
In farm animals, gonads are organs associated with
- A. circulation
- B. excretion
- C. respiration
- D. reproduction.
What method of mining is used for extracting petroleum in Africa?
- A. Crushing
- B. Drilling
- C. Adit
- D. Open cast