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If the distance between two points (0,–5) and (x,0) is 13 unit, then x =

10
± 10
12
± 12

Correct Answer: 12

Explanation:

According to question , we have
√( x - 0 )² + ( 0 + 5 )² = 13
⇒ x² + 25 = 169
⇒ x² = 169 - 25 = 144
∴ x = √144 = 12

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