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Anuta_ua [19.1K]
3 years ago
9

Two points are given: (-4,3) and (2,-5). Find the distance between the two points. (The numerical value simplified as much as po

ssible thanks)
Mathematics
1 answer:
natulia [17]3 years ago
4 0

Answer:

distance is 11.3137 units

Step-by-step explanation:

\sqrt{( - 4 -2) ^{2}  + (3 -  - 5) ^{2}  }  \\  \sqrt{64 + 64}  \\  \sqrt{128 } \\  \sqrt{2 \times 64}  \\  \sqrt{2}  \times  \sqrt{64}   \\ 8 \sqrt{2} \: units \\ 11.3137 \: units

hopefully it makes sense

:)

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Answer:

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Step-by-step explanation:

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3 years ago
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Ef is the median of trapezoid abcd (please explain the answer im so confused lol)
Art [367]

Step-by-step explanation:

Okay, so...

The Median of a trapezoid is directly in the middle. For some weird mathimatical reason you won't ever need to know unless it's on an exam or you become a math major, its midsegment is the average of the top length and the bottom length.

In other words,

EF = ( BC + AD ) / 2

So for part 1, we can use that equation to find x.

EF = ( BC + AD ) / 2

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4x-18=[(x+12)+(3x-4)]/2

  • Simplify within parentheses.

4x-18=[x+12+3x-4]/2

4x-18=[x+3x+12-4]/2

  • Add.

4x-18=[4x+8]/2

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Part 2 is a lot easier now. All we have to do is plug in 11 for x.

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Part I: x = 11

Part II:

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Answer:

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