Answer:
2 sqrt 74
Explanation:
d^2 = ( x1-x2)^2 + (y1-y2)^2
d^2 = ( 5 - -5 )^2 + ( -10 -4)^2
= 100 + 196
d^2 = 296
d = sqrt 296 = 2 sqrt (74)
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