Solve the equation. Express radicals in simplest form.(r + 2)2 = 14
A. {12}
B. {-2 + 
, -2 - 
}
C. {2 + 
, 2 - 
}
D. {
, 
}
Answer: B
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Solve the problem.Suppose that the temperature T, in degrees Fahrenheit, during a 15-hr period in winter is given by 
for 0 ? x ? 15, where x is the number of hours since midnight. Sketch the graph of the function. Estimate the minimum temperature and when it occurs. Round answers to the nearest hundredth, if necessary.
A. 
Minimum temperature is 0.46°F;
occurs at 4.61 hours after midnight
B. 
Minimum temperature is 0.46°F;
occurs at 3.42 hours after midnight
C. 
Minimum temperature is 2.31°F;
occurs at 4.61 hours after midnight
D. 
Minimum temperature is 1.43°F;
occurs at 3.42 hours after midnight
Simplify.
A. Cannot be simplified
B. 
C. 
D. 
Which of the following is most typical of a value-creating activity associated with the differentiation strategy compared with the cost leadership strategy?
A. frequent evaluation processes to monitor suppliers' performance B. intense and effective training programs to improve worker efficiency and effectiveness C. easy-to-use manufacturing technologies. D. extensive personal relationships with buyers and suppliers
Solve the problem.The kings are separated from a deck of standard playing cards and shuffled. One is randomly selected. What are the odds of drawing a black card?
A. 1 : 2 B. 1 : 4 C. 1 : 1 D. 4 : 1