1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
natita [175]
4 years ago
5

Forensic scientists use the following law to determine the time of death of accident or murder victims. If T denotes the tempera

ture of a body t hr after death, then:
T = T0 + (T1 - T0)(0.97)^t
where T0 is the air temperature and T1 is the body temperature at the time of death. John Doe was found murdered at midnight in his house; the room temperature was 67°F and his body temperature was 82°F when he was found. When was he killed? Assume that the normal body temperature is 98.6°F. (Round your answer to two decimal places.)
Mathematics
1 answer:
Naddik [55]4 years ago
7 0

Answer: He was killed 24.83 hours before the body was found.

Step-by-step explanation:

Since we have given that

T=T_0+(T_1-T_0)(0.97)^t

Here, T is the temperature of a body t hr after death, T = 82°F

T₀  is the air temperature , T₀ = 67°F

T₁ is the body temperature at the time of death = T₁ = 98.6°F

So, we will substitute all the values in the above equation.

82=67+(98.6-67)(0.97)^t\\\\82-67=31.6(0.97)^t\\\\\dfrac{15}{31.6}=(0.97)^t\\\\0.474683544=(0.97)^t\\\\\text{Taking ln on both sides}\\\\\ln(0.474683544)=t\ln(0.97)\\\\-0.745=t\times -0.030\\\\t=\dfrac{0.745}{0.030}\\\\t=24.83\ hours

Hence, he was killed 24.83 hours before the body was found.

You might be interested in
Vanessa was baking cookies. Each batch of cookies made 3 dozen. If Vanessa uses 6 cups of flour total and each batch requires 1
erastovalidia [21]
Each batch gives you 3 dozen and you need 1 1/2 cups for each batch of cookies

she uses 6 cups in total, so divide 6 by 1 1/2 to get the number of batches

6 ÷ 1 1/2 = 4 batches

so 4 batches × 3 dozen cookies = 12 dozen cookies

4 0
3 years ago
Solve for c. 3c+2=-10 and thank you
RSB [31]

Answer:

c= -4

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
In a a computer game positive numbers represent earning points and negatiive numbers represents.wich number represents losing mo
Anuta_ua [19.1K]

An expression is defined as a set of numbers, variables, and mathematical operations. The expression that represents losing more than 500 points is x<-500.

<h3>What is an Expression?</h3>

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

Given In a computer game positive numbers represent earning points and negative numbers represent losing points. Therefore, the loss of more than 500 points is given by the inequality,

x< -500

Hence, the expression that represents losing more than 500 points is x<-500.

Learn more about Expression:

brainly.com/question/13947055

#SPJ1

5 0
2 years ago
Ms santos seashells into 4 row she puts 6 seashells in each row how many seachells are there altogether
kati45 [8]
4 rows and 6 seashells in each row. 
Row 1: 0 0 0 0 0 0
Row 2: 0 0 0 0 0 0
Row 3: 0 0 0 0 0 0
Row 4: 0 0 0 0 0 0

You add all of them together 6+6+6+6=24 
Or you could do 6x4 and your answer would be 24
So the answer to the question is 24 seashells. 
3 0
3 years ago
Please solve! <br><br> The sum of 11 and Diego's age is 53<br> .
sammy [17]
If you are trying to figure out what Diego's age is it is 42.  

11+ 42= 53
3 0
4 years ago
Read 2 more answers
Other questions:
  • Which sentence is in the indicative mood?
    8·2 answers
  • A student is solving the equation 2^x – 1 = 16^x + 2. Step 1: 2^x – 1 = 16^x + 2 Step 2: 2^x – 1 = (2^4)^x + 2 Step 3: 2^x – 1 =
    10·1 answer
  • PRECALCULUS HELP A.0 b.3 C.4 D.7
    13·1 answer
  • Please answer all of these
    8·1 answer
  • 11( 8r+ 3) - 2(-9 + 6r)
    15·1 answer
  • what are some of the main purposes of having complete and accurate medical documentation? Include as many reasons as you can thi
    9·1 answer
  • A particular shade of paint is made by mixing 5 parts red paint and 7 parts blue paint. To make this shade, Shannon mixed 12 qua
    10·1 answer
  • Luisa earns money mowing her neighbors' lawns.
    7·1 answer
  • HELP ASAP PLEASE PLEASE HELP ME THESE ARE TWO Separate answers please help
    8·2 answers
  • 25=21 minus 4x whats the answer
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!