it was 15 this how u do it next time(2,7) and (7,5) left parenthesis, x, start subscript, 1, end subscript, comma, y, start subscript, 1, end subscript, right parenthesis, and , left parenthesis, x, start subscript, 2, end subscript, comma, y, start subscript, 2, end subscript, right parenthesis (x 1,y 1) and (x 2,y 2) Distance Formula: , square root of, left parenthesis, x, start subscript, 1, end subscript, minus, x, start subscript, 2, end subscript, right parenthesis, squared, plus, left parenthesis, y, start subscript, 1, end subscript, minus, y, start subscript, 2, end subscript, right parenthesis, squared, end square root Distance Formula: (x 1x 2) 2 +(y 1y 2) 2square root of, left parenthesis, minus, 2, minus, 7, right parenthesis, squared, plus, left parenthesis, 7, minus, left parenthesis, minus, 5, right parenthesis, right parenthesis, squared, end square root (27) 2 +(7(5)) 2Plug in square root of, left parenthesis, minus, 2, minus, 7, right parenthesis, squared, plus, left parenthesis, 7, plus, 5, right parenthesis, squared, end square root (27) 2 +(7+5) 2Negative of a negative is a positive square root of, left parenthesis, minus, 9, right parenthesis, squared, plus, left parenthesis, 12, right parenthesis, squared, end square root (9) 2 +(12) 2Add/Subtract square root of, 81, plus, 144, end square root 81+144Square square root of, 225, end square root 225Perfe do it like this