Solve the problem.The following points form a quadratic relationship: (1, 5.0), (2, 4.4), (3, 4.3), (4, 4.2), (5, 4.6), (6, 4.8), 
The x-coordinates are the years a particular company has been in operation and the y-coordinates are the profit, in millions, for that year. Use quadratic regression to determine the profit in the fourth year.
A. 4.20 million
B. 4.35 million
C. 4.28 million
D. 6.5 million
Answer: C
Mathematics
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Solve the problem.You have 68 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side along the river, find the length and width of the plot that will maximize the area.
A. length: 34 ft, width: 34 ft B. length: 17 ft, width: 17 ft C. length: 51 ft, width: 17 ft D. length: 34 ft, width: 17 ft
Mathematics
Find the difference.-12.6 - 13.4
A. 0.8 B. -0.8 C. 26 D. -26
Mathematics
Add.
+ 
A. 
B. 
C. 
D. 
Mathematics
Multiply. Write the answer in simplest form. 
? 
? 
A. 
B. 
C. 
D. 
Mathematics