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For N to be not divisible by 3, N can either be of the form 3k + 1 (1,4...) or 3k + 2 (2,5...), where k is an integer.
The proof can then be done by checking both 3k + 1 and 3k + 2 when N is squared...

Opportunity cost is the next best alternative choice that someone has. In an economy, it can be confronted by several actors; the government itself, consumers, or firms.
On an indiv...

inhibitor is a similar shape to the substrate
this means the inhibitor blocks the active site of the enzyme
the substrate cannot bind to the active site, so fewer enzyme substrate complexes can ...

answer structure: definition, explanationdefinition: I/S tells you what happened throughout the year, B/S is a snapshot of financial position of a firm at a specific dateexplanation: bottom line on I/S (n...

answer structure: definition, equation/ graphs, explanationdefinition: PED measures the responsiveness of demand for a product to a change in its own priceequation: change in demand %/ change in price % (...