subject
Mathematics, 15.04.2020 17:45 victoriakraus6599

QuestionDetails:
coroner's rule of thumb
coroners estimate time of death using the rule of thumb that abody cools about 2 degrees farenheit during the first hour afterdeath and about 1 degree farenheit for each additional hour. assuming an air temperature of 68 degrees farenheit and a livingbody temperature of 98.6 degrees farenheit, the temperature T(t) indegrees farenheit of a body at a time t hours since death is givenby:
T(t) = 68 +30.6e^-kt
For what value of k will the body cool by 2 degrees farenheitin the first hour?
ResponseDetails:
Assuming that T(1) = 98.6 - 2 = 96.6 we get:

ResponseDetails:
since k = 0.067
b) using the value of k, after how many hours will thetemperature of the body be decreasing at a rate of 1 degree F perhour?**
**iplugged in 0.067, but i'm not sure of my answer. below iswhat i did for the second question:
96.6= 68 + 30.6e^ -0.067t
28.6= 30.6e^ -0.067t
0.935= e^ -0.067t
ln0.935 = -0.067t ln e
1= t
c) using the value of k, show that, 24 hours afer death, the coroner's rule of thumb gives approximately the sametemperature as the formula.

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 14:50
Eight people were asked what the balance of their savings account at the beginning of the month was and how much it increased or decreased by the end of the month. create a scatter plot that represents the data that is shown in the table. the x-axis represents the beginning balance in thousands of dollars and the y-axis represents the change in the savings account in hundreds of dollars. name beginning balance (in thousands of dollars) change in savings account (in hundreds of dollars) jimmy 5 3 kendra 4 7 carlos 5 4 yolanda 3 1 shawn 2 5 laura 3 2 andy 5 6 georgia 4 3
Answers: 1
question
Mathematics, 21.06.2019 20:30
Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp
Answers: 1
question
Mathematics, 21.06.2019 21:20
Do you mind if you guys me with this question i’m on number 8
Answers: 1
question
Mathematics, 21.06.2019 23:40
Solve these problems: 1.what is the perimeter of an equilateral triangle with sides measuring 6cm? 2. a regular pentagon has sides measuring 3.2 cm. what is its perimeter? 3. a regular decagon has sides of 3.5mm . what is it’s perimeter? 4. a regular octagon has a perimeter of 64cm. what is the length of one of the sides? 5. a regular hexagon has a perimeter of 72mm . what is the length of one of the sides? 6. what is the perimeter of a rhombus with sides measuring 11m?
Answers: 2
You know the right answer?
QuestionDetails:
coroner's rule of thumb
coroners estimate time of death using the rule...
Questions
Questions on the website: 13722363