Asked by harry

To the nearest tenth, what is the distance between (7,4) and (12,5)?
a) 4.8 units
b) 4.9 units
C) 5.0 units
d) 5.1 units

Please explain. Thank you.

Answers

Answered by Fiore
The squared distance is sum of squares of difference of all coordinates.

d^2 = (x1-x2)^2 + (y1-y2)^2 = (7-12)^2 + (4-5)^2, so... ;)
Answered by harry
Thanks!
Answered by Fiore
Welcome ;)
Answered by HomoNovus
The answer was about 5.1 by the way.
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