Una sustancia es retirada de un horno y llevada a un área de enfriamiento que mantiene una temperatura estable de 43°C, a los 15 y 30 minutos después de haberse iniciado el enfriamiento se realizaron dos registros de temperatura, que arrojaron como resultado 285°C y 252 °C, respectivamente. Determinar: a) La temperatura inicial de la sustancia. b) En que instante la temperatura del cuerpo es de 80 °C.

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

Jessica is organizing a guided tour of the rain forest. the average profit per person that the touring company makes is given by the rational expression 18x+35/x, where x is the number of people going on the tour. what does the numerator of this rational expression represents?

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