Question

Can someone please help me

Answer 1

11.2

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 =
`√((2-4)^2+(-4-7)^2)`

=
`√((-2)^2+(-11)^2)`

=
`√(4+121)`

=
`√(125)` ≈ 11.2