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What are the assumptions of perfect competition?

Large number of firms and consumersEach firm is a price-taker and hence has no price setting powerThe price is determined in the market by supply and demandProducts are homogenous and are therefore perfect s...
EB
Answered by Emily B. • Economics tutor
2139 Views

Explain how eutrophication can result in low oxygen levels in the water in the stream.

Eutrophication occurs when excess nitrates from fertilisers seep into the stream. The nitrates cause algal bloom on the surface of the water. As a result, sunlight is blocked from reaching the plants underwa...
NB
Answered by Nadia B. • Biology tutor
4627 Views

How many roots does the equation x^2 = x + 12 have and what are they?

x 2 -x -12 = 0. Here we have rearranged the equation so that we have 0 on one side of the equation, allowing us to now factorise. (x - 4)(x+3) = 0. By looking at the equation we can see that the number 12 ha...
JE
Answered by Juzer E. • Maths tutor
4376 Views

List 3 similarities and differences between the structure of a plant cell and an animal cell

Similarities:They both have a cell membraneThey both have a nucleusThey both have cytoplasmDifferences:A plant cell has a cell wall but an animal cell doesn'tA plant cell has a vacuole but an animal cell doe...
SR
6091 Views

Solve y = 2x^2 - 5x - 1 for x = -1 and x = 2

y = 2 (-1) 2 -5(-1) -1y = 2 + 10 - 1y = 11y = 2 (2) 2 -5(2) -1y = 8 - 10 -1y = -3
AB
Answered by Anna B. • Maths tutor
5052 Views