Add or subtract as indicated. Express the answer as a single polynomial in standard form.(3x2 + 2x + 7) + (6x2 - 5x + 9)

A. 13x2 - 2x + 11
B. 9x2 - 3x - 16
C. 9x2 - 3x + 16
D. 9x2 + 3x + 16


Answer: C

Mathematics

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A. x2 + y2 = 4 B. x2 - y2 = 4 C. x2 + y2 = 16 D. x2 + y2 = 8

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Match the following statements and reasons to complete the proof of:

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A. w = j
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