Solve the problem.At a manufacturing plant, the total cost (in dollars) to produce x items isC(x) = 0.12x + 3140.What is the marginal cost per item?
A. $3140.12
B. 
+ $0.12
C. $3140
D. $0.12
Answer: D
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Using switches, design a circuit that would find the truth values for the statement.
?
?
(a)
(b)
(c)
?
A. a
B. b
C. c
Perform the indicated operations and simplify the result. Leave the answer in factored form.
+ 
A. 
B. 
C. 
D. 
Identify in which period and place you find the digit 5.845,731
A. Period: thousands, Place: tens B. Period: thousands, Place: ones C. Period: ones, Place: ones D. Period: ones, Place: thousands
Solve the problem.The cumulative number (in thousands) of deaths from a certain disease from 2000 to 2010 is modeled by 
where x = 0 corresponds to 2000, x = 1 to 2001, etc. Use the formula for A to estimate symbolically the year when the total number of deaths reached 90 thousand.
A. 2008 B. 2006 C. 2007 D. 2005