Can someone please help me

Mathematics

1 answer:

Zepler [3.9K]3 years ago

4 0

Answer:

11.2

Step-by-step explanation:

Calculate the length using the distance formula

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = B(4, 7) and (x₂, y₂ ) = C(2, - 4)

d = $\sqrt{(2-4)^2+(-4-7)^2}$

= $\sqrt{(-2)^2+(-11)^2}$

= $\sqrt{4+121}$

= $\sqrt{125}$ ≈ 11.2

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