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.

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made. determine an equation to model his situation?

What is the total surface area of this square pyramid?