Concept explainers
Getting a Formula In Exercises S-4 through S-13, a verbal description of a function is given. Use a formula to express the function.
You sell lemonade for 25 cents per glass. You invested
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- Forensics At 8:30 A.M., a coroner went to the home of a person who had died during the night. In order to estimate the time of death, the coroner took the person’s temperature twice. At 9:00 A.M. the temperature was 85.7F, and at 11:00 A.M. the temperature was 82.8F. From these two temperatures, the coroner was able to determine that the time elapsed since death and the body temperature were related by the formula t=10lnT7098.670 where t is the time in hours elapsed since the person died and T is the temperature (in degrees Fahrenheit) of the person’s body. (This formula comes from a general cooling principle called Newton’s Law of Cooling. It uses the assumptions that the person had a normal body temperature of 98.6F at death and that the room temperature was a constant 70F.) Use the formula to estimate the time of death of the person.arrow_forwardTerry is skiing down a steep hill. Terry’s elevation, E(t),in feet after tseconds is given by E(t)=300070t. Write a complete sentence describing Terry’s startingelevation and how it is changing over time.arrow_forwardA farmer wants to find the best time to take her hogs to market. The current price is 108 cents per pound and her hogs weigh an average of 90 pounds. The hogs gain 5 pounds per week and the market price for hogs is falling each week by 2 cents per pound. How many weeks should she wait before taking her hogs to market in order to receive as much money as possible? K S She should wait weeks. View an example Get more help. - F2 20 F3 000 DOD F4 01 F5 MacBook Air F6 ◄◄ F7 ▶11 F8 ►► F9 F10 Clear all 4) F11 Check answer 4) F12arrow_forward
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