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
Ierofanga [76]
1 year ago
13

Will mark brainliest, need help ASAP!

Mathematics
1 answer:
nikitadnepr [17]1 year ago
5 0

The percentage of the original sample that is left after 115 days is; 23.4733%

<h3>How to calculate the decay percentage?</h3>

Formula for radioactive decay is;

A = A₀ * (1/2)^(t/t_¹/₂)

where;

A = quantity of the substance remaining

A₀ = initial quantity of the substance

t = time elapsed

t_¹/₂ = half life of the substance

Thus;

A/A₀ =  (1/2)^(115/55)

A/A₀ =  0.234733 or 23.4733%

Read more about decay constant at; brainly.com/question/11117468

#SPJ1

You might be interested in
Which of the rectangles below have an area of 18 cm²?
Elenna [48]

\textsf{Rectangle A}

\implies \mathsf {Area = 3 \times 6 = 18cm^{2}}

\implies \bf {Yes}

\textsf {Rectangle B}

\implies \mathsf {Area = 2 \times 9 = 18cm^{2}}

\implies \bf {Yes}

\textsf {Rectangle C}

\implies \mathsf {Area = 5 \times 4 = 20cm^{2}}

\textsf {Rectangle D}

\implies \mathsf {Area = 9 \times 2 = 18cm^{2}}

\implies \bf {Yes}

5 0
2 years ago
Read 2 more answers
Plzzzz help me with this problem
hichkok12 [17]

Answer:

Option B

Step-by-step explanation:

The Europeans moved to American colonies in order to increase their wealth and broaden their influence over world affairs.

7 0
3 years ago
I've been stuck on this for about 2 hours but it still doesn't make any sense to me, please helpppppppppp
Mariana [72]
I really hope this helps. I’m sure the answer is c:)
5 0
3 years ago
How does the graph of f(x)=x² compare with the graph of f(x)=|x²|
gladu [14]

Answer:

They are the same.

Step-by-step explanation:

The graphs are same because <em>x</em>² is always positive, so the absolute value part is redundant.

3 0
3 years ago
In a race, 41 out of the 50 bicyclists finished in less than 38 minutes. What percent of bicyclists finished the race in less th
storchak [24]
For left put 2 on each
On the box over 100 put 82, and put 82 in the box on the right
5 0
3 years ago
Read 2 more answers
Other questions:
  • Can u help me in this two questions... thanks! It’s a challenge for you!! Try to
    13·1 answer
  • The sum of three numbers is 12. The second number is equal to the sum of the first and third numbers. Twice the first number exc
    13·1 answer
  • Don is buying a home for $190,300.He is making a 30% down payment and financing the rest with a 15 – year loan at 5.75% interest
    12·2 answers
  • Our budget plan averages customer’s annual cost and gives them a monthly budget bill to reduce the high’s and low’s throughout t
    8·1 answer
  • 9t = ? Lb. show work.​
    5·2 answers
  • A cube has a side length of 7 in. <br><br> What is the volume of the cube?<br><br> ________ in3
    9·1 answer
  • What is the perimeter?
    7·1 answer
  • Please help
    15·1 answer
  • The square below represents one whole express the shaded area as a fractio., a decimal, and a percent of the whole Fraction: Dec
    10·1 answer
  • The FBI wants to determine the effectiveness of their 1010 Most Wanted list. To do so, they need to find out the fraction of peo
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!