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Mathematics 21 Online
OpenStudy (anonymous):

PLEASE HELP.......... Find the distance between the points given. (-10, 3) and (-10, 12) I did it and the answers I got were wrong...

OpenStudy (anonymous):

the answer choices are 9, 15 or root 17

OpenStudy (anonymous):

do you know what the distance formual is?

OpenStudy (anonymous):

\[\sqrt{(x1-x2) + (y1 -y2)}\]

OpenStudy (anonymous):

now plug in your coordinates to that equation

OpenStudy (nurali):

\[D=\sqrt{(x _{2}-x _{1})^2+(y _{2}-y _{1})^2}\]

OpenStudy (anonymous):

@mymymy plug in coordinates and solve to get √653 or25.55

OpenStudy (nurali):

(-10, 3) and (-10, 12) (x1,y1) and (x2,y2)

OpenStudy (anonymous):

now plug that in

OpenStudy (nurali):

put in formula

OpenStudy (anonymous):

now plug that in

OpenStudy (nurali):

\[D=\sqrt{(-10+10)^2+(12-3)^2}\] \[D=\sqrt{(9)^2}\] \[D=9\]

OpenStudy (anonymous):

well said

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