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andreyandreev [35.5K]
3 years ago
5

Prove that the expression A + B - C is equivalent to the expression C - B - A if A = 2x - 1, B = 3x + 1 and C = 5x.

Mathematics
1 answer:
zepelin [54]3 years ago
3 0

Answer:

both are equal is 0

Step-by-step explanation:

After substituting, the answer is 0 to both

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Combine. Note that one positive and one negative = one negative

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omeli [17]

Answer:

\dfrac{\sqrt{40}\cdot \sqrt{40}}{2}

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The length of the base is the distance between the points 4+2i and 10+4i, so

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The middle point of the base is placed at point

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The length of the height is the distance between the points 5+9i and 7+3i

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A=\dfrac{1}{2}\cdot \text{Base}\cdot \text{Height}=\dfrac{\sqrt{40}\cdot \sqrt{40}}{2}

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Answer:

B

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