In coordinate geometry, the equation of the x-axis is
4. Question | Mathematics
The exterior angles and the interior angles of a polygon are equal. How many sides does the polygon have?
5. Question | Information Technology
Which of the following statements is UNTRUE?
6. Question | Mathematics
The triangle ABC above shows the angle of elevation of the top, B, of a tower, BC, from A, to be 30°. AB = 40 m. The length of BC is
7. Question | Chemistry
Nitrogen fixation produces:
8. Question | Biology
Which one of the following is a biological component of a pond ecosystem?
9. Question | Chemistry
Any solution with a pH below 7 must be:
10. Question | Principles Of Accounts
A and B had a partnership and shared profits and losses 2/3 and 1/3 respectively. They admitted C to the partnership. In addition to capital, C had to pay goodwill $3,600. How much did A and B receive as their respective share of Goodwill?
11. Question | Biology
All of the following can affect the size of a population EXCEPT for:
12. Question | Principles Of Accounts
A machine costs $10,000. It has an expected life of six years and has a residual value Of $400. Using the straight-line method, what is the depreciation per annum?
13. Question | Physics
A detector close to a sample of radioactive material records 76 counts per second (cps). Precisely 2 days later the count rate has fallen to 22 cps.The count rate due to background radiation, taken immediately before and after the experiment, averaged 4 cps. The half-life of the material is:
14. Question | Mathematics
A man's regular pay is $3 per hour up to 40 hours. Overtime is twice the payment for regular time. If he was paid $168, how many hours overtime did he work?
15. Question | Physics
An electron, with its charge of 1.6 × 10-19 C, is moved from one place at +8 V to a different place which is at 0 V.The energy released will be:
16. Question | Chemistry
The pH scale runs from 1 to:
17. Question | Biology
Which of the following does NOT play a role in evolutionary change?
18. Question | Chemistry
All of these are compounds EXCEPT for:
19. Question | Mathematics
In the Venn diagram above, the shaded portion represents
20. Question | Integrated Science
Which one of the following lists only differences between aerobic respiration and anaerobic respiration?
