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Kay [80]
3 years ago
13

Which expression can be used to determine the length of segment AB?

Mathematics
1 answer:
Studentka2010 [4]3 years ago
7 0

Answer:

see explanation

Step-by-step explanation:

Calculate the length using the distance formula

AB = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = A(4,3) and (x₂, y₂ ) = B(- 2, 1)

AB = \sqrt{(-2-4)^2+(1-3)^2}

     = \sqrt{(-6)^2+(-2)^2}

     = \sqrt{36+4}

     = \sqrt{40}

     = \sqrt{4(10)} = \sqrt{4} × \sqrt{10} = 2\sqrt{10} ← exact length

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