The sizes of the interior angles of a polygon
are x°, 2x°, 60°, 3x° and 36°. What is the
value of x ?
2. 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:
3. Question | Integrated Science
Sea breezes result because:
4. Question | Principles Of Accounts
The imprest systems saves time in the posting of expenses to the nominal accounts because
5. Question | Biology
75 g of freshly dug soil was placed in an oven at 105 ℃ for 24 hours. It was allowed to cool, then reweighed. If the final mass of the dry soil was 66 g, what was the % water content of the original soil sample?
6. Question | Biology
Which of the following are examples of environmental variation in humans?
Ⅰ hair colour
Ⅱ height
Ⅲ intelligence
Ⅳ body mass
7. Question | Chemistry
We use expanded polystyrene cups for heat of reaction experiments because the cups are:
8. Question | Biology
The wall of the left ventricle is thicker than that of the right ventricle because:
9. Question | Information Technology
The system used by mission control in Houston, Texas to monitor the operation of space exploration vehicles is an example of the __________ processing mode.
10. Question | Integrated Science
Urea is made from surplus proteins in:
11. Question | Chemistry
When aluminium is extracted by electrolysis, cryolite is added to:
12. Question | Social Studies
Which of the following methods of fishing is MOST damaging to the eco-system?
13. Question | Chemistry
To make car bodies we use:
14. Question | Information Technology
__________ enables users to convert the image from a fax modem to text and then edit it.
15. Question | Principles Of Accounts
John Jones pays his employees by cash. How will he record this payment in his books?
16. Question | Integrated Science
The correct equation for photosynthesis is:
17. Question | Chemistry
The sharp-tasting compound in vinegar is:
18. Question | Mathematics
If US$1.00 is equivalent to J$120.00, how
much in US$ would one get for J$9600?
19. Question | Physics
The graph shows the results of an experiment to investigate
the relationship between the voltage placed across a light bulb
and the current which then flows through it.Which one of the
following statements is NOT true?
20. Question | Chemistry
All of these are used as food additives EXCEPT for:
