The inverse cosine can never be outside the domain of [-1,1]. 3/2 is greater than 1, and so there can never be a corresponding angle the cosine of which would give you 3/2. The cosine of any angle can only result in a value between or equal to -1 and 1.
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The gap between those with access to new technologies and those without is called Digital Divide. Although there are no options given in the question, but i hope this is the answer you were looking for. It can be considered as a type of social and economic inequality. If this kind of gap is considered in reference to different countries, then it is referred to as Global Digital Divide.
Answer:
(D) If the human auditory system were a perfect receptor of sounds, then every permutation of language sounds would be an understandable word.
Explanation:
From the question, it is stated that if the human auditory system is an imperfect receptor of sounds, then it is not true that every possible permutation of a spoken language’s basic language sounds can be an understandable word.
Hence, this also means that if the human auditory system is a perfect receptor of sounds, then it is also true that every permutation of language sounds would be an understandable word.
Answer:
A strong body of research indeed indicates that the type of neighborhoods in which children grow up can influence many aspects of their development. And that the very division of neighborhoods into rich and poor can cause many of subsequent problems, like crime, drug abuse, school dropouts, discrimination.
As a mayor, you may suggest that for each neighborhood to have its own the school, only further exacerbates these problems, You may propose a project of merging schools of two neighborhoods, but the community is strongly against it. Meanwhile, a locally done research can change the public views and serve as a better justification for your proposal.
The challenges that this research presents are manageable. In particular, the anonymity of the families<u> </u>in the longitudinal study your planning to organize has to be maintained on the side of interpreting and reporting studies results. Respective confidentiality agreements also have to be concluded with all of the participants.
Regarding political issues, increasing social mobility in rich neighborhoods should support be of a supportive factor for this research. Newly rich families often move to rich neighborhoods, while families who have lost their wealth have to move out. In addition, some modern families do not care as much about attributes of their status, especially in the millennial generation, thus it becomes harder to identify how rich or poor a family actually is.
Inability to regulate commerce among the states
