For problems 2-4 find a formula for the nth term of the arithmetic sequence.
A. 
B. 
C. 
D. 
E. None of these
Answer: B
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______ is the process of evaluating a firm's credit policy to determine whether a shift in its customers' payment patterns has occurred.
A. Receivables monitoring B. Accounts payables monitoring C. Concentration banking D. Customer maintenance E. Purchasing subsidization
Use the Gauss-Jordan method to solve the system of equations. If the system has infinitely many solutions, give the solution with y arbitrary.x + y = 3x - y = -4
A. 
B. 
C. ?
D. 
Use the properties of logarithms to find the exact value of the expression. Do not use a calculator.log2 28 - log2 14
A. 2 B. 28 C. 14 D. 1
Solve the problem.Newton's Law of Cooling states that the rate of change of temperature of an object is proportional to the difference in temperature between the object and the surrounding medium. Thus, if T is the temperature of the object after t hours and T0 is the (constant) temperature of the surrounding medium, then
where k is a constant. A dish of lasagna baked at 400°F is taken out of the oven into a kitchen that is 74°F. After 8 minutes, the temperature of the lasagna is 320.4°F. What will its temperature be 11 minutes after it was taken out of the oven? Round your answer to the nearest degree.
A. 305°F B. 296°F C. 280°F D. 289°F