Answer:
AB = 2 root 13
AC = 4 root 5
Explanation:
AB = sqrt[(-4-2)² + (3-7)²]
AB = sqrt(36 + 16)
AB = sqrt(52)
AB = 2sqrt(13)
AC = sqrt[(-8-0)² + (7-3)²]
AC = sqrt(64+16)
AC = sqrt(80)
AC = 4sqrt(5)
sqrt: square root
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