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
LuckyWell [14K]
3 years ago
11

Situation:

Mathematics
1 answer:
FromTheMoon [43]3 years ago
4 0

Answer:

5.6 days

Step-by-step explanation:

We are given;

Initial Mass; N_o = 25 g

Mass at time(t); N_t = 25/2 = 12.5 (I divide by 2 because we are dealing with half life)

k = 0.1229

Formula is given as;

N_t = N_o•e^(-kt)

Plugging in the relevant values;

12.5 = 25 × e^(-0.1229t)

e^(-0.1229t) = 12.5/25

e^(-0.1229t) = 0.5

(-0.1229t) = In 0.5

-0.1229t = -0.6931

t = -0.6931/-0.1229

t = 5.6 days

You might be interested in
[(17-9)x(3x2)]÷2 find the value of the following expression
MatroZZZ [7]
Solve the parenthesis firt.
17-9 = 8
3*2 = 6    now multiply 6 by 8 that equals 48
now divide 48 by 2
48÷2= 24
8 0
3 years ago
Read 2 more answers
Please help out, using your knowledge of equilateral and isosceles triangles, find the value of x
alukav5142 [94]

Answer:

I think the other angles are 40 degrees excpet the "x" which is 100 also

Step-by-step explanation:

5 0
3 years ago
Maria jogged 3 miles in 3/5 hour. Kari jogged 2 1/2 miles in 1/2 hour. Tell whether each statement is True or False.
Margaret [11]

Answer:

I believe this is correct

A is FALSE

B is TRUE

C is FALSE

3 0
2 years ago
Read 2 more answers
NEED ANSWERS ASAP
Ray Of Light [21]
If it's most likely A. or B.

Correct me if I'm wrong.

But, I hope this helps!
5 0
3 years ago
Read 2 more answers
Round 4.908 to the hundredths place.
WITCHER [35]

Answer:

4.91 is the answer

Explanation:

4.908 the hundredths place is the 0, and 8 is greater than 5, so it would become 4.91

8 0
3 years ago
Other questions:
  • Brian invests £4700 into his bank account.
    15·1 answer
  • answers please! i’m in need of answers! i really need to get a good grade on this so i can get a better grade for my math test!
    5·2 answers
  • The owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club. She would now like to det
    10·1 answer
  • Raise 7 to the 5th power, subtract the result from 9, then multiply what you have by c
    11·1 answer
  • 6. Condensation is the continuous process by which water moves from Earth's surface to the atmosphere and back.
    9·2 answers
  • 6 more than the quotient of 9 and f​
    12·1 answer
  • What is the radius and diameter of the following circle?​
    12·2 answers
  • Given f(x) = ex and g(x) = x -2, what is the range of (gºf)(x)? ​
    15·2 answers
  • Segment AB and AC are tangent to the circle C
    8·1 answer
  • One year membership cost $538. There is an initial sign up fee of $35. Write an equation you can use to find out how much you pa
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!