Solve the problem.The number of acres in a landfill decreases according to the function B = 8400e-0.05t, where t is measured in years. How many acres will the landfill have after 5 years?
A. 11,645 acres
B. 4724 acres
C. 5057 acres
D. 6542 acres
Answer: D
Mathematics
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Find the limit.
A. -? B. Does not exist C. ? D. 0
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Graph the parabola.y = 
(x + 3)2 - 1
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Find the area A of a rectangle with length 2.1 cm and width 6.8 cm.
A. A = 28.56 cm2 B. A = 8.4 cm2 C. A = 8.9 cm2 D. A = 14.28 cm2
Mathematics
Solve the problem.The profit function for a product is given by P(x) = -0.1x3 + 16.5x2 - 530x - 12,000 dollars, where x is the number of units produced and sold. Determine the levels of production and sale that give break-even.
A. 100 units B. 80 or 100 units C. 120 units D. 90 or 120 units
Mathematics