32 a) on a graph plot the points P(1,4),Q(4,8),R(5,1) b) determine whether or not the triangle PQR is isosceles c) find the coordinates of the mid-point of PR No spam please
Noimin
Asked:
December 2022
Which of the following test results would help to prove that a particular sample of water was pure? A. The pH was 7 B. Anhydrous copper (ll) sulphate turned blue C. On evaporation, it turned no residue D. It boiled at exactly 100 degree celsius at a pressure of one...
Noimin
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December 2022
When air is liquefied and then allowed to boil, nitrogen gas comes off first. This is because give me the correct answer no spam
Noimin
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December 2022
Which of these combinations react to produce hydrogen gas? A. Copper and hydrochloric acid B. Iron and water C. Copper oxide and sulphuric acid D. Calcium and water
Noimin
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December 2022
Ordinary air contains about 21% of oxygen. However , when river water is boiled, over 25% of oxygen is released. The explanation for this is that A. the oxygen gas is more soluble in water than nitrogen gas. B. river water is cleaner than the air C. the carbondioxide gas...
Noimin
Asked:
December 2022
The cylindrical end of a pencil is sharpened to produce a perfect cone at the end with no overall loss of length . If the diameter of the pencil is 1cm , and the cone is of length 2cm,calculate the volume of the shavings .
Noimin
Asked:
December 2022
How do our kidneys carry out osmoregulation during a very hot day when a person drinks small amount of water