Solve the problem.You have 64 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: 48 feet, width: 16 feet
B. length: 32 feet, width: 16 feet
C. length: 32 feet, width: 32 feet
D. length: 16 feet, width: 16 feet
Answer: B
Mathematics
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Find the indicated sum.
+ 1 + 
+ . . . + 13
A. 
B. 230
C. 
D. 
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Determine which value(s), if any, must be excluded from the domain of the variable in the expression.
A. x = 0 B. x = -1 C. x = 1 D. none
Mathematics
Convert the measurement as indicated.128 fl oz to gallons
A. 1 gal B. 4 gal C. 8 gal D. 2 gal
Mathematics
A certain firm's marginal cost for a product is 
, its marginal revenue is 
, and its total cost of production of 11 units is $1,243. Find the profit function P.
A. 
B. 
C. 
D. 
E. 
Mathematics