Solve the problem.You have 80 feet of fencing to enclose a rectangular region. What is the maximum area?

A. 400 ft2
B. 1600 ft2
C. 396 ft2
D. 6400 ft2


Answer: A

Mathematics

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Estimate the error that is made by approximating the sum of the given series by the sum of the first five terms.

A. 0.193 B. 0.0779 C. 0.0965 D. 0.1557

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Compute.65 centimeters + 1 centimeter - 8.7 centimeters

A. 72.7 centimeters B. 66.3 centimeters C. 57.3 centimeters D. 55.3 centimeters

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Use the given zero to find the remaining zeros of the function.f(x) = x4 - 21x2 - 100; zero: -2i

A. 2i, 10i, -10i B. 2i, 10, -10 C. 2i, 5, -5 D. 2i, 5i, -5i

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Apply row operations to the augmented matrix to find the solution to the linear system.

A. x = -3, y = 1 B. x = 3, y = -1 C. x = -1, y = 3 D. x = 1, y = -3

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