The table shows the numbers 
(in thousands) of residents from 2002 through 2007.
YearNumber of residents, 
2002 646 2003 657 2004 668 2005 679 2006 690 2007 701Determine whether a linear model can be used to approximate the data.If so, find a model algebraically. Let n represent the year, with 
corresponding to 2002.
A. A linear model can be used.
B. A linear model can be used.
C. A linear model can be used.
D. A linear model can be used.
E. A linear model can be used.
Answer: D
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Perform the indicated operation. Assume that all variables are nonnegative.
(
- 
)
A. 7
+ 7
B. 8
C. 
D. 
- 
How many local maxima and minima does the polynomial have?
?
?
A. 1 maximum and 1 minimum B. 1 maximum and 2 minima C. 0 maxima and 1 minimum D. 1 maximum and 0 minima E. 2 maxima and 1 minimum
Give the degree of the polynomial (when simplified), and tell whether it is a monomial, a binomial, a trinomial, or none of these.15x4 + 3w3 - 6w + 3y5 + 5
A. Degree 5; none of these B. Degree 4; trinomial C. Degree 4; none of these D. Degree 5; trinomial
Perform the indicated operations and simplify the result. Leave the answer in factored form.
? 
A. 
B. 
C. 
D. 