Answer:
Among the options given on the question the correct answer is option A.
Crowded,unsanitary living conditions in tenements.
Explanation: During the early 1900s , there was a flow of migrated people from different place of world. Those people were in search of opportunity and better life from which they had in their previous place. Moreover, the people those who lived in the rural areas of America they also started to gather in the urban areas of America in search better opportunities.
As a result the population in urban areas increased rapidly and the need of accommodation was at it's highest. At this time the tenements house expressed as the suitable accommodation for these migrated lower and lower middle class. This tenement houses were low in heights and tiny.Moreover, there was lack of ventilation which made these housed suffocated. On the other hand , there was lack of sanitary which a health issue.
For these reason, the urban Americans faced crowded, unsanitary living conditions in tenements.
The dictionary defines resources as the set of elements available to solve a need or carry out a business. There are several types of resources. Two large categories are those of renewable and non-renewable resources. The non-renewable exist in fixed quantities, nature can not recreate them in short geological periods. Renewable natural resources, on the other hand, can be restored by natural processes at a speed higher than that of consumption by human beings.
In a company we can talk about human, financial, material, technical and technological resources.
1- The human resource is paramount in the operation of any company. And it depends on the management and operation of other resources. (employees and collaborators who work there)
2- Financial resources: they are the own and foreign resources of economic and monetary character that the company requires for its operation.
3- Material resources: tangible assets of the company (facilities, equipment, raw material)
4- Technical and technological resources: Tools and auxiliary instruments in the coordination of other resources.
There is a subtle difference between Arctan and arctan
Arctan(x) is an inverse function such that the range is only the principla value
meanwhile, arctan(x) takes on infinitely many values
hope this helps
