Mathematics, 03.05.2020 13:45, sierravick123owr441

Cavar um buraco retangular de 1 m de largura de modo que o volume cavado seja de 300 m³. Sabendo que cada m² de área cavada custa 10 reais e cada metro de profundidade custa 30 reais, determinar as dimensões do buraco de modo que seu custo seja mínimo.

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Cavar um buraco retangular de 1 m de largura de modo que o volume cavado seja de 300 m³. Sabendo que...