In a city, the construction of new establishments (E(t)) depends on the number of people (N(t)) living there. In addition, the number of people in the city increases, due to migration from nearby towns, at a rate depending on the establishments that are available for the people in the city. Setup differential equation(s) for the number of establishments (E(t)) and the number of people in the city (N()), solve them to find how each of them grows in time? Assume - there were no people in the city when there were no establishments. In addition, state some of the limitations of this simple model of a city.

answer: the risk-return relationship. generally, the higher the potential return of an investment, the higher the risk. there is no guarantee that you will actually get a higher return by accepting more risk. diversification enables you to reduce the risk of your portfolio without sacrificing potential returns.

explanation:

president carter called the victims of kidnapping "victims of terrorism and anarchy" and added that the united states was not going to give in to blackmail. in the united states, they see hostage-taking as an outrage on the part of the islamist movement that violated the principle of international law on the immunity and inviolability of diplomats and their embassies.

carter refused to yield to the demands, khomeini used the situation to consolidate his power and nullify the challenges of the moderate wing of his government, headed by its president. the euphoria over the humiliation of the most powerful nation distracted the iranian people from the economic difficulties of their country. carter, in april 1980, broke diplomatic relations with iran and imposed a trade embargo, except medicine and food. iranian funds in the us they were frozen and accounted for to compensate the hostages when they were released and to pay the demands of us companies against iran.

a direct vote in which an entire electorate is invited to vote on a particular proposal. this may result in the adoption of a new law.