The police discover a murder victim at 6:00a.m. The body temperature of the victim is measured then and found to be 25°C. A doctor arrives on the scene of the crime 40 minutes later and measures the body temperature again. It is found to be 22°C. The temperature of the room remains constant at 15°C. The doctor, knowing that normal body temperature is 37°C, estimate the time of death of the victim.

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Q: S is 4 years older than J. 8 years ago, s was twice as old than J. What are the ages of S & J?

A: Let the age of S be x years, then the age of J is (x - 4) years, because S is 4 years older than J.

Q: At 8:30 a.m., a coroner was called to the home of a person who had died during the night. In order…

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Q: Consider an object in a surrounding with a constant temperature of 25C. If the temperature of the…

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Q: A cold metal bar at −30◦C is submerged in a pool maintained at a temperature of 40◦C. Half a minute…

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Q: If you drive from New York to Boston at 55 MPH, and return at 75 MPH. What is your overall average…

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Q: A dead fish was found inside a compartment that is able to maintain a constant temperature of 373…

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Q: At 10:00 a.m. the temperature is –3.4°F. The temperature increases 0.5°F each hour for the next 6…

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Q: a firms revenue is given by $20 e0.46 t . how long will it take to grow to $165

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Q: The temperature on the 10th of January is 25 F. Over the next week the temperature is supposed to…

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Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence.  It was invented by German mathematician Carl Friedrich Gauss.