Solve the problem.The population P, in thousands, of Prairie Grove is given by P = 
, where t is the time, in months. Determine the interval on which the population was greater than or equal to 40 thousand.
A. (-?, ?)
B. [0.83, 5.42]
C. [0.664, 4.336]
D. [4.336, ?)
Answer: B
Mathematics
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Use a calculator to approximate the square root to three decimal places. 
A. 8.715 B. 8.723 C. 76.000 D. 8.718
Mathematics
Graph the ellipse.
+ 
= 1
A. 
B. 
C. 
D. 
Mathematics
Verify the identity.
2 = 1 - sin x
What will be an ideal response?
Mathematics
Determine two functions, designated by y1 and y2, such that their union will give the graph of the given equation.(x - 4)2 + (y + 1)2 = 16
A. (x - 4) + (y1 + 1) = 2 and (x - 4) + (y2 + 1) = -2
B. y1 = 1 + 
and y2 = 1 - 
C. y1 = -1 + 
and y2 = -1 - 
D. y1 = -1 + 
and y2 = -1 - 
Mathematics