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Gre4nikov [31]
4 years ago
5

Caculate the distance between the points L= (-1 ,-2) and (7,-9)

Mathematics
2 answers:
LUCKY_DIMON [66]4 years ago
5 0
Distance  sqrt of (x2-x1)/(y2-y1).

Distance = sqrt of 8/-7

Hope this helps!
Zanzabum4 years ago
5 0
Point 1 (-1, -2) and point 2 (7, -9), x1= -1, y1= -2, x2= 7 and y2= -9  
we will calculate distance with next formula :   
L^2= (x2 - x1)^2 + (y2 - y1)^2 =>  L^2 = (7- (-1))^2 + (-9-(-2))^2 =>
L^2 = (7+1)^2 + (-9+2)^2  => L^2 = 8^2 + (-7)^2   => L^2 = 64 + 49 =>
L^2 = 113 =. L= square root of 113 =>  L= 10.63
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