Based on the information provided in your question, if the body temperature of the deceased woman is 29.4°C (84.9°F), and assuming a postmortem cooling rate of 1.5 to 2 degrees Fahrenheit per hour, it is estimated that the time of death would be approximately 12 to 18 hours prior to the body temperature measurement. It's important to note that this estimate is based on general guidelines and may not be entirely accurate, as multiple factors can affect the rate of postmortem cooling in individual cases. Therefore, a proper determination of the time of death in a forensic investigation would require a comprehensive analysis of various factors, including body temperature, in conjunction with other evidence and forensic techniques.