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bogdanovich [222]
3 years ago
6

X to the power of 2+ 2X plus 3X to the power of 2+ 4X subtract 2X to the power of 2+ X

Mathematics
1 answer:
eimsori [14]3 years ago
8 0

Answer:

4x+12

Step-by-step explanation:

2x + 2 \times  { }^{2}  + 6x + 12 x ^{2}  - 4x +  - 2x ^{2}

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Karen claps her hand and hears the echo from a distant wall 0.113 s later. How far away is the wall? The speed of sound in air i
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Answer:

19.3795 m

Step-by-step explanation:

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Note that the distance calculated above is the distance travelled from Karen to the wall and then back from the wall to Karen. Therefore, the distance between Karen and the wall is:

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