Find the intervals over which f is increasing.
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A) (–?, –2], [1, ?) B) (–3, ?) C) (–?, –3], [1, ?) D) None
D) None
Mathematics
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Solve using matrices.6x + 8y = 89x - 3z = -136y - 3z = 11
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.You have 156 feet of fencing to enclose a rectangular region. Find the dimensions of the rectangle that maximize the enclosed area.
A. 78 ft by 19.5 ft B. 39 ft by 39 ft C. 41 ft by 37 ft D. 78 ft by 78 ft
Mathematics
Solve the inequality.x + 
< 11
A. (-?, 0) or (9, ?) B. (0, 2) or (9, ?) C. (-?, 0) or (2, 9) D. (0, 2) or (2, 9)
Mathematics
Solve the problem.Suppose that 
is invested at an interest rate of 
per year, compounded continuously. What is the balance after 2 years?
A. $7845.26 B. $7399.00 C. $7945.26 D. $7798.00
Mathematics