Solve by elimination and check.x + y = -8x - y = 4

A. (2, -5)
B. (-3, -5)
C. No solution
D. (-2, -6)

Answer: D

Mathematics

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Provide an appropriate response.Perform the indicated operation, leaving the answer in lowest terms:   ÷  =

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B.
C.
D.

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Add and subtract as indicated. Simplify and leave the numerator and denominator in your answer in factored form. +  - 

A. 3
B.
C.
D.

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Rationalize the denominator. Assume that all variables represent positive real numbers.

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B.  
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D.  

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Factor the expression completely.2x8 - 512

A. 2(x4 - 16)2 B. 2(x4 + 16)(x2+ 4)(x + 2)(x - 2) C. (2x4 +  32)(x2+ 4)(x + 2)(x - 2) D. 2(x4 + 16)(x4 - 16)

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Mathematics