Вопрос школьника по предмету Математика
периметр треугольника ABC равен 24 см. Длина стороны AB составляет 35%, а длина стороны BC — 25% периметра треугольника. Найдите длину стороны AC.
Ответ учителя по предмету Математика
Смотри решение вот:
1) 25+35=60
2)100-60=40% длина АС
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Решите уравнение:
1. (х+5)^2-4x*(х+5)=0
( ^ — степень, если что)