A farmer has 216 feet of fencing and wants to build two identical pens for his prize-winning pigs. The pens will be arranged as shown. Determine the dimensions of a pen that will maximize its area.
A. 
B. 
C. 
D. 
E. 
Answer: E
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Solve the problem.What is the domain of the sine function?
A. all real numbers, except integral multiples of ? (180°)
B. all real numbers
C. all real numbers from -1 to 1, inclusive
D. all real numbers, except odd multiples of 
(90°)
Solve the problem.The mainsail of a sailboat is triangular in shape. What is the area of a mainsail with dimensions 11 ft, 15 ft, and 5 ft?
A. 37 ft2 B. 35 ft2 C. 13 ft2 D. 15 ft2
Evaluate the triple integral.
A. 45
B. 
C. 
D. 
Fourty liters of a 40% acid solution is obtained by mixing a 28% solution with a 50% solution.Write a system of equations in which one equation represents the amount of final mixture required and the other represents the percent of acid in the final mixture. Let x and y represent the amounts of the 28% and 50% solutions, respectively. ?
A. ?
B. ?
C. 
D. ?
E. ?