$\"\"$

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(a)

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Find time of death.

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Death can be calculated by using the formula $\"\"$ .

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Where

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$\"\"$ : time in hours.

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$\"\"$ : Temperature of the body.

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$\"\"$ : Room temperature.

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Find time of death.

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Temperature of the body is $\"\"$ .

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Room temperature is $\"\"$ .

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Substitute $\"\"$ , $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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Time of death is $\"\"$ hours. $\"\"$

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(b)

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Find the body temperature.

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Time of death is $\"\"$ hours.

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Room temperature is $\"\"$ .

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Substitute $\"\"$ , $\"\"$ in $\"\"$ .

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$\"\"$

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Definition of logarithm : $\"\"$ if and only if $\"\"$ .

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$\"\"$ \ \ Temperature the body is $\"\"$ .

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$\"\"$

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(c)

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Find the room temperature.

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Temperature of the body $\"\"$ .

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Time of death is $\"\"$ hours.

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Substitute $\"\"$ , $\"\"$ in $\"\"$ .

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$\"\"$

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Definition of logarithm : $\"\"$ if and only if $\"\"$ .

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$\"\"$

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$\"\"$

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Room temperature is $\"\"$ . $\"\"$

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(a) Time of death is $\"\"$ hours.

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(b) Temperature the body is $\"\"$ .

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(c) Room temperature is $\"\"$ .