Solve the problem.You have 152 feet of fencing to enclose a rectangular region. What is the maximum area?
A. 5776 ft2
B. 23,104 ft2
C. 1440 ft2
D. 1444 ft2
Answer: D
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Multiply. Write the answer as a mixed number as needed.4
? 5
A. 20
B. 100
C. 25
D. 3
Determine whether the Fourier series of the given function will include only sine terms, only cosine terms, or both sine terms and cosine terms.f(x) = 1 - 6x -7 ? x < 7
A. both sine and cosine terms B. only cosine terms C. only sine terms
Determine whether the nonincreasing sequence converges or diverges.a1 = 1, an+1 = 4an - 6
A. Converges B. Diverges
Solve the problem.Assume that from 1930 to 1980, the number of deaths from lead poisoning (per 100,000 people) decreased dramatically and could be modeled by 
where x is the year. Determine when, to the nearest year, this death rate was 150 or less by graphing y = f(x) and 
in [1930, 1980, 10] by [0, 200, 25].
A. 1967 or after B. 1960 or after C. 1973 or after D. 1964 or after