Mining. In cryptocurrency networks, mining is a validation of transactions. For this effort, successful miners obtain new cryptocurrency as a reward. The reward decreases transaction fees by creating a complementary incentive to contribute to the processing power of the network.
It matters because the actual coffee flavor is extracted from grind better at higher temperatures. I'm not a scientist but I trust those that have done the research and they say that the optimal temperature for hot water in a coffee pot is between 195-200 degrees or just a little under boiling.
The temperature of a cup of coffee after t minutes is T(t) = 20+75e^(-.02t) Celsius. FInd the average temperature of the coffee during the first half hour. I got 1/30(600-3750e^(-.6)+(3750) unsimplified. Follow.