A. 
B. 
C. 
D. 
E. None of these
Answer: D
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Perform the indicated operations, and write the answer in scientific notation.
A. 2 × 104 B. 2 × 106 C. 2 × 10-5 D. 2 × 107
Solve the problem.The winner of the 1998 Peoria 500 (mile) race was Serge Bologna, with an average rate of 182.857 miles per hour. What was his time in hours? (Round to the nearest one thousandth hour.)
A. -7.266 hours B. 2.734 hours C. 12.734 hours D. 91,428.500 hours
A store sells two models of laptop computers. Because of the demand, the store stocks at least twice as many units of model A as of model B. The costs to the store for the two models are $800 and $1200, respectively. The management does not want more than $29,000 in computer inventory at any one time, and it wants at least four model A laptop computers and two model B laptop computers in inventory at all times. Find and graph a system of inequalities describing all possible inventory levels. ?
A. 
B.
?
C.
?
D. ?
E.
?
Find the vertex.f(x) = (x + 4)2
A. (0, 4) B. (-4, 0) C. (0, -4) D. (4, 0)