Perform the indicated operations. Simplify if possible.
+ 
- 
A. 
B. 
C. 
D. 
Answer: A
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Integrate the function.
, x > 7
A. 
+ C
B. - 
+ C
C. 
+ C
D. - 
+ C
The following table shows the number C, in millions, of cars sold in the U.S. t years after 2005. Explain in practical terms the meaning of the slope of the regression line. t 0 1 3 5 C 5.58 5.48 5.25 4.58? ?
A. Sales are increasing by 0.19 million cars per year. B. Sales are decreasing by 0.19 million cars per year. C. Sales are increasing by 0.10 million cars per year. D. Sales are decreasing by 0.10 million cars per year.
Determine whether the graph is a tree.A computer virus infects a large number of computers at a sensitive government department. The department officials identify a single floppy disk as the source of the infection. The floppy disk was circulated among all of the staff members, who each infected their own computer when they loaded the disk into their computer. To track the circulation of the infecting disk, a graph is drawn where vertices represent staff members with infected computers and edges connect each person to the staff member from whom the person first received the disk. Must the graph necessarily be a tree?
A. Yes B. No
Find the apportionment asked for.A small city has 50 police officers to be apportioned among 8 precincts based on the population of each precinct. The populations are given in the following table. 
Find the apportionment for the Seventh Precinct using Adams' method.
A. 4 B. 6 C. 7 D. 5