lucywood312 lucywood312
  • 03-02-2021
  • Mathematics
contestada

Please can someone help with this question? Need the working out too

Please can someone help with this question Need the working out too class=

Respuesta :

jimrgrant1 jimrgrant1
  • 03-02-2021

Answer:

AB ≈ 9.85 units

Step-by-step explanation:

Calculate AB using the distance formula

AB = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]

with (x₁, y₁ ) = A(1, 7) and (x₂, y₂ ) = B(10, 3)

AB = [tex]\sqrt{(10-1)^2+(3-7)^2}[/tex]

     = [tex]\sqrt{9^2+(-4)^2}[/tex]

     = [tex]\sqrt{81+16}[/tex]

     = [tex]\sqrt{97}[/tex] ≈ 9.85 units ( to 3 significant figures )

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