A cell site is a site where electronic communications equipment is placed in a cellular network for the use of mobile phones. The numbers of cell sites from 1985 through 2008 can be modeled by 
where t represents the year, with 
corresponding to 1985. Use the model to find the number of cell sites in the year 2007.
a. 211,071
b. 209,071
c. 208,071
d. 207,071
b. 209,071
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Solve the problem.Which of the following [A), B), C), or D)] is the most appropriate type of graph for representing a continuous random variable?
A. a pictogram B. a histogram C. a bar graph D. a pie chart E. none of these
Evaluate the expression.6P4
A. 2 B. 30 C. 24 D. 360
Use the Factor Theorem to determine whether x - c is a factor of f(x).f(x) = 8x4 + 23x3 - 3x2 + x + 3; x + 3
A. Yes B. No
Graph the given functions on the same rectangular coordinate system. Describe how the graph of g is related to the graph of f.f(x) = 
, g(x) = 
+ 4
A. g shifts the graph of f vertically down 4 units
B. g shifts the graph of f vertically up 4 units
C. g shifts the graph of f vertically down 4 units
D. g shifts the graph of f vertically up 4 units