The total numbers of Navy personnel N (in thousands) and Marines personnel M (in thousands) from 2000 through 2007 can be approximated by the models

?

 and 

?

where t represents the year, with t = 0 corresponding to 2000.

Find and interpret  .

?



A. , which represents the difference between the number of Navy personnel and the number of Marines personnel.
B. , which represents the difference between the number of Navy personnel and the number of Marines personnel.
C. , which represents the difference between the number of Navy personnel and the number of Marines personnel.
D. , which represents the difference between the number of Navy personnel and the number of Marines personnel.
E. , which represents the difference between the number of Navy personnel and the number of Marines personnel.


Answer: E

Mathematics

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