Solve the problem. Round to two decimal places unless otherwise indicated.Suppose the cost per ton, y, to build an oil platform of x thousand tons is approximated by y = . What is the cost per ton for x = 400?

A. $113,513.51
B. $200,000.00
C. $131.25
D. $283.78

Answer: D

Mathematics

Perform the matrix operation.Given A = and B = , find A + B.

A.

B.

C.

D. Not defined

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Mathematics

Multiply.5 × 14 × 83

A. 5799 B. 5821 C. 5810 D. 5800

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Mathematics

Convert the function to the specified base. f(x) = x; convert to base 10

A. f(x) = 10^x
B. f(x) = 10^{-7 log x}
C. f(x) = 10^{-x log 7}
D. f(x) = 10^{x log 7}

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Mathematics

Multiply.(-6x2)(-2x3)

A. -8x6 B. -12x6 C. -8x5 D. 12x5

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Mathematics