Solve the problem.A company predicts that sales will increase rapidly after a new product is released, with the number of units sold weekly modeled by N = 3000(0.2)0.7t, where t represents the number of weeks after the product is released. Use graphical or numerical methods to find the first week in which 2250 units were sold.
A. 3rd week
B. 5th week
C. 6th week
D. 7th week
Answer: B
Mathematics
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Evaluate the improper integral or state that it diverges.
A. ln 7
B. 
C. ln 5
D. diverges
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Solve the equation.4x(x - 7) = (3x - 3)(x - 7)
A. {-3} B. {-7, 3} C. {7, -3} D. {3}
Mathematics
Use formulas for perimeter and area to solve the problem.A circular fountain has a statue in its center, 3 m from the edge. Find the perimeter of the fountain. If necessary, use 3.14 for ? and round the result to the nearest tenth.
A. 18.8 m B. 9 m C. 16.8 m D. 9.4 m
Mathematics
Write the expression in spreadsheet notation. Let x be in cell A1.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics