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
Firlakuza [10]
3 years ago
7

Tungsten, W-181 is a radioactive isotope with a half life of 121 days. If a medical lab purchase 24 kg of W-181 how much will be

left after 1 year?
Mathematics
2 answers:
Vladimir [108]3 years ago
8 0

Answer:

2.97 kg.

Step-by-step explanation:

We have been given that Tungsten, W-181 is a radioactive isotope with a half life of 121 days.

We will use half-life formula to solve our given problem.

A=a\cdot (\frac{1}{2})^{\frac{t}{h}}, where,

A = Final amount.

a = Initial amount,

t = Time,

h = Half life.

Upon substituting our given values in above formula we will get,

A=24\cdot (\frac{1}{2})^{\frac{365}{121}}

A=24\cdot 0.1235760503818562

A=2.9658252091\approx 2.97

Therefore, 2.97 kg of W-181 will be left after 1 year.

qwelly [4]3 years ago
3 0
3 kg because one year is approximately 3 half-lives of W-181. The amount remaining would be 1/23<span> or 1/8. That is 3 kg of W-181.</span>
You might be interested in
Graph the line that passes through the points (8,0) and (2,6) and determine the
pantera1 [17]

Answer:

y= -x+ 8

Step-by-step explanation:

4 0
3 years ago
How does a residential survey help buyers?
Gnoma [55]
<span>C) buyers are aware of the accurate measurements of the property. A residential survey is also known as a boundary survey and is used to determine the boundaries of a piece of property. It is generally required as part of the process of building new construction on a property to insure that the construction doesn't cross the property line and intrude on someone else's property. With this in mind, only option "C" reflects what a residential survey is.</span>
3 0
3 years ago
Read 2 more answers
Which of the following functions represents an exponential decay with a 15% rate of change where A represents the initial value
melisa1 [442]

The function that represent this exponential decay is given as y = A(0.85)ˣ

<h3>What is an exponential function?</h3>

An exponential function is in the form:

y = abˣ

Where a is the initial value and b is the multiplication factor.

Given that A is the initial value, there is a decay of 15%, hence:

b = 100% - 15% = 0.85

The function that represent this exponential decay is given as y = A(0.85)ˣ

Find out more on exponential function at: brainly.com/question/12940982

3 0
2 years ago
Traci plans to conduct a coin-flipping experiment to see if the probability of landing on "heads" or "tails" is close to the the
Lunna [17]
The experiment with the least number of trials.
 
Experimental probability is more accurate and more close to theoretical probability by having the most trials. More trials = more accuracy. Less trials = less accuracy.
6 0
3 years ago
Help me please will mark as brainliest
julsineya [31]
Option D should be the right answer
5 0
3 years ago
Other questions:
  • In a trapezium pqrs , pq is parallel to Sr , pq = ps = qr and psr = 66 , calculate
    13·2 answers
  • A family of two adults and four children is going to an amusement park.Admission is $21.75 for adults and $15.25 for children.Wh
    13·1 answer
  • ..........................
    13·2 answers
  • Write 1050.00 in words​
    14·1 answer
  • How do you do simple intrest?
    11·2 answers
  • What is a word phrase for 1/2x+5
    14·1 answer
  • A fast-food restaurant has an automated beverage machine that dispenses a set amount of liquid based on a size setting. Suppose
    15·1 answer
  • Help me please this probibly wont stop till my IXL is at an 80%
    15·2 answers
  • Maisie has three times as many CDs as Ken. Ken has twice as many CDs as Jo. Jo has more than 10 CDs. What is the least number of
    6·1 answer
  • Determine the intercepts of the line.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!