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 total number of Navy and Marines personnel combined.
B. 
, which represents the total number of Navy and Marines personnel combined.
C. 
, which represents the total number of Navy and Marines personnel combined.
D. 
, which represents the total number of Navy and Marines personnel combined.
E. 
, which represents the total number of Navy and Marines personnel combined.
Answer: D
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Find the slope of the polar curve at the indicated point.r = 5(1 + cos?), ? = 
A. 
B. -2
C. 1
D. 2
Use the ordinary annuity formula to determine the accumulated amount in the annuity. Round the answer to the nearest cent.$125 is invested monthly for 8 years at 8% compounded monthly
A. $17,333.70 B. $17,433.69 C. $16,733.57 D. $17,133.59
Translate into an equation, and then solve the equation.Two times what number is equal to twelve?
A. 2x = 12; 6 B. 2x = 12; 7 C. 2x = 12; 5 D. 2 + x = 12; 6
Find the requested area or volume.Area of a trapezoid: Height = 2
in., B = 
in., and b = 
in. (where B is the length of the longer of the parallel sides, and b is the length of the shorter of the parallel 
A. 
in.2
B. 3
in.2
C. 6
in.2
D. 
in.2