Solve the problem.The rate that a moving company charges depends on the distance, x, in miles that the articles are moved. Let C(x) represent the cost to perform a move of x miles. One firm charges as follows:
Where is C discontinuous?
A. x = 150 miles
B. x = 150 miles and x = 250 miles
C. C is continuous at all points in its domain.
D. x = 250 miles
Answer: D
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Provide an appropriate response.If sin x is replaced by 
and |x| < 0.5, what estimate can be made of the error?
A. |E| < 0.000021701 B. |E| < 0.000003100 C. |E| < 0.000010851 D. |E| < 0.000001550
Solve the problem.Use the following graph which shows the number of customer service calls to a major appliance manufacturer, in millions, for the years 2006-2012. Use the graph to represent the set in roster form.
2006200720082009201020112012YearThe set of years in which the number of customer service calls exceeded 1.1 million.
A. {2006, 2007, 2008, 2010, 2011} B. {2009, 2012} C. {2006, 2007, 2008, 2009, 2010, 2011} D. {2006, 2007, 2008, 2011}
Solve.
= x + 6
A. -4 B. -3 C. 5 D. 4
Add or subtract as indicated. Write your answer in the form a + bi.(4 + 8i) - (-5 + i)
A. 9 + 7i B. -1 + 9i C. 9 - 7i D. -9 - 7i