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
GREYUIT [131]
2 years ago
8

The isotope known as carbon-14 is radioactive and will decay into the stable form nitrogen-14. As long as an organism is alive,

it ingests air, and the level of carbon-14 in the organism remains the same. When it dies, it no longer absorbs carbon-14 from the air, and the carbon-14 in the organism decays.
The half-life of carbon-14 is 5770 years. Assume an organic sample is 15,000 years old.

Determine how many half-lives are in 15,000 years. Then use this answer to determine what percentage of the original amount of carbon-14 remains after 15,000 years. Round your answer as a percentage to the nearest whole number.
_____%
Mathematics
2 answers:
podryga [215]2 years ago
8 0

9514 1404 393

Answer:

  • about 2.6 half-lives
  • 16% remains

Step-by-step explanation:

The number of half-lives is ...

  (15000 yr)/(5770 yr/half-life) = 2.6 half-lives

__

Then the amount of C14 remaining after 15000 years is ...

  0.5^2.6 ≈ 0.1649 ≈ 16%

SpyIntel [72]2 years ago
3 0
The half life would be about 3 so making the percentage About 25%
You might be interested in
These prisms are similar. Find the volume of the larger prism in decimal form. Ratio 5:7. Volume of smaller Prism is 50 m3
lord [1]

Answer:

137.2 m³

Step-by-step explanation:

The ratio of volumes is the cube of the ratio of linear dimensions. The larger volume is ...

... V = (7/5)³ × 50 m³ = 2.744 × 50 m³

... V = 137.2 m³

6 0
3 years ago
The Two sets A and B are said to be disjoint sets if A n B=_____
asambeis [7]

The Two sets, A and B, are said to be disjoint sets if A n B=ϕ

<h3>What does it mean for two sets to be disjoint?</h3>
  • Disjoint sets are a pair of sets that do not share any elements. For instance, sets A=2,3 and B=4,5 are not connected sets.
  • When two sets don't share elements, they are considered disjoint sets. In other words, the null set will result if we find the intersection of two sets. The process is straightforward; two sets are given in this procedure.
  • When using a disjoint set union, it is possible to add new sets, combine existing sets, and check whether two sets of elements are the same in almost real-time.

The Two sets, A and B, are said to be disjoint sets if A n B=ϕ

To learn more about two sets to be disjoint, refer to:

brainly.com/question/13100777

#SPJ9

4 0
2 years ago
URGENT, ALL HELP ACCEPTED PLEASE!<br><br> Solve y= 3x-1 and (1/2)y+x=1 for their COMMON solution.
faust18 [17]
Simplify the second equation.

1/2y = -x + 1

Multiply both sides by 2

y = -2x + 2

Since both equations equal y you can set them equal to each other.

-2x + 2 = 3x - 1

Solve for X

-5x = -3

x = 3/5

Plug this into one of the equations.

3(3/5) - 1 = y

1.8 - 1 = y

y = .8

(0.6, 0.8)
6 0
4 years ago
Tanisha plants 2/3 of her garden with flowers.She covers 1/4 of this part of the garden with roses.What part of her whole garden
Talja [164]

Answer:

\frac{1}{6}

Step-by-step explanation:

We can find this by multiplying the two-thirds of Tanisha's garden by one-fourth, which is \frac{2}{3}*\frac{1}{4}=\frac{1}{6}.

8 0
4 years ago
The sensitive period for language is from 7 months in utero up to 5.5 to 6 years of age. There are several aspects of language f
OleMash [197]

Answer:

The sensitive period for language is from 7 months in utero up to 5.5 to 6 years of age. There are several aspects of language from spoken language, to written language and reading. ... The sensitive period for learning to speak is from is from 7 months to 2.5-3 years of age.

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • It is known that roughly 2/3 of all human beings have a dominant right foot or eye. Is there also right-sided dominance in kissi
    11·1 answer
  • Advance tickets<br> same day tickets
    10·1 answer
  • What is the simplest form of this expression 4y(y-1)-3y^2
    10·1 answer
  • The perimeter of the triangle is 126 units.<br>Find the measure of each side.​
    12·2 answers
  • Everyone buying a pizza at JR's pizzeria gets a card that conceals either a J or an R. When the waxcovering is rubbed off, the c
    9·1 answer
  • Answer the following and provide if the answer is negative or positive.
    9·2 answers
  • Help I can’t figure it pout
    14·2 answers
  • I need the full ans pls
    6·1 answer
  • Qüîz 10-2 Gina wilson answers please ​
    7·1 answer
  • Prank em john!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!