Solve the system by the addition method.

A. {(3, 8)}
B. ?
C. {(3, 9)}
D. {(x, y) 

Answer: A

Mathematics

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Find an upper bound for the magnitude |E| of the error in the approximation f(x, y) ? L(x, y) at the given point over the given region R. at ; R: |x - 1| ? 0.1, |y + 2| ? 0.1, |z - 3| ? 0.1

A. |E| ? 0.63 B. |E| ? 0.84 C. |E| ? 0.42 D. |E| ? 0.56

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Mathematics

Simplify. Include the absolute value symbol if necessary. If the answer is not a real number, state so.

A.
B.
C.
D.

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Mathematics

Decide whether the statement is true or false.If a point lies on the x-axis, its x-coordinate is zero.

A. True B. False

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Mathematics

Express the given expression in simplest form with only positive exponents.-2

A.
B.
C.
D. 9x8

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Mathematics