Solve.The population P, in thousands, of Pine Grove is given by P(t) = 
, where t is the time, in months. Find the interval on which the population was 40 thousand or greater.
A. [0.942, 3.058]
B. (-?, ?)
C. [3.058, ?)
D. [1.177, 3.823]
Answer: D
Mathematics
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Use the given conditions to write an equation for the line in slope-intercept form.Passing through the point (3, 1) and perpendicular to y = -2x + 1
A. y = - 
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B. y = -2x - 
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D. y = 2x - 
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Express the sum using summation notation.8 + 
+ 
+ ... + 
A. 
B. 
C. 
D. 
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Solve the problem.Find the consumers' surplus if the demand for an item is given by 
assuming supply and demand are in equilibrium at 
A. 72 B. 144 C. 216 D. 432
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