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A) 15x² +7

B) 30x

Some important conditions of perfect competition are that all firms sell an identical (homogeneous) product, there is a large number of buyers and sellers, and no one buyer or seller can influence the rul...

GCSE English Literature essays are often more descriptive and use a more formulaic structure. An A level essay requires you to be more deeply analytical with your text, and there are fewer strict guidelin...

Hydrophobic signalling molecules can pass through the lipid bilayer of the membrane due to both being hydrphobic. Once within the cell, the molecule can bind to a receptor or transcription factor to inhib...

To get dy/dx from a formula y in terms of x we must differentiate y with respect to x. Generic formula for term differentiation: d/dx(ax^b) = bax^b-1 = times the coefficient by the power and minus the pow...