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
timama [110]
3 years ago
5

a piece of fossilized tree trunk is possibly 4000 years old. The sample contains 65% of the original amount of carbon-14. Is the

age correct?
Mathematics
1 answer:
Fiesta28 [93]3 years ago
4 0

Answer:

  no

Step-by-step explanation:

Let f represent the fraction of C-14 remaining as a function of the time t in years. Since the half-life of C-14 is about 5570 years, we have ...

  f = (1/2)^(t/5570)

Taking the log and solving for t, we get ...

  log(f) = (t/5570)log(1/2)

  5570·log(f)/log(1/2) = t

Filling in the given value for f, the value of t we get is ...

  5570·log(0.65)/log(0.5) = t ≈ 3462

It appears the estimate of 4000 years is a bit high.

You might be interested in
Which of the following is an example of discrete data?
ahrayia [7]

Answer:

D- the number of times you get heads when you flip a coin 100 times

Step-by-step explanation:

7 0
2 years ago
Each square on the grid represents 1 ft². What is the approximate area of this patch of grass? A. about 35 ft² B. about 40 ft² C
larisa [96]
A. about 35 ft I hope this helps you 
5 0
3 years ago
Read 2 more answers
Write a linear equation in slope intercept form to model a tree 4 feet tall the grows 3 inches per year
Hoochie [10]
Y = 3x + 48  where x is your number of years. I got 48 by multiplying 4 and 12 since there are 12 inches in a foot. (:
7 0
3 years ago
8
diamong [38]

Answer:

b i think

Step-by-step explanation:

6 0
3 years ago
Help me plz thank you
DIA [1.3K]

Answer:C

Step-by-step explanation: 100 x 23/100=23

8 0
3 years ago
Other questions:
  • The sum of two numbers is 125 and their difference is 47. Find each of the numbers.
    9·1 answer
  • Multiply using napier's rods 3x4565
    11·1 answer
  • Each interior angle of a regular hexagon is 4x+24°. What is x?
    5·1 answer
  • What is the equation of the given line (1, 5) (3, 5) A.Y = 5 B. X = 3 C. Y=3 D. X = 1
    6·1 answer
  • The quantities x and y are oropottional find the contast of proportional of(r) y=rx ​
    15·1 answer
  • Where does the line y = 4x + 1 intersect the y-axis (the y-intercept)?
    8·1 answer
  • 35 POINTS - question 31 please!
    5·1 answer
  • There is a blue house, on the right of the blue house in 30 km there is a red house...
    8·1 answer
  • Pls help I’ve been getting bots all day! I really need help and I will give brainliest!
    9·2 answers
  • Solve for c in terms of a and b <br><br> a=b+c
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!