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
dolphi86 [110]
3 years ago
11

A 14 gram sample of a substance that's used to preserve fruit and vegetables has a k-value of 0.1092. Find the substance's half-

life, in days. Round your answer to the nearest tenth. N=Noe^-kt
Mathematics
1 answer:
nignag [31]3 years ago
5 0

Answer:

t = 6.3

Step-by-step explanation:

N=Noe^(-kt)

No = 14 grams

k = .1092

We want to find t when N = 7 or 1/2 of 14

N=Noe^(-kt)

7 = 14 e ^ (-.1092t)

Divide each side by 14

1/2 = e ^ (-.1092t)

take the natural log of each side

ln (1/2) = ln e ^ (-.1092t)

ln (1/2) = -.1092t

Divide each side by -.1092

ln (1/2)/ -.1092 = t

t≈6.3475

Rounding to the nearest tenth

t = 6.3

You might be interested in
Sonya sells bracelets once a month at a flea market. The
marta [7]
$30 because if you add 30 to those numbers it would give you the next months amount.
3 0
3 years ago
Answer 1-2 no links.​
aleksley [76]

Answer:

sorry for wrong answer

Step-by-step explanation:

Labor unions arose in the nineteenth century as increasing numbers of Americans took jobs in factories, mines, and mills in the growing industrial economy.

The Knights of Labor, founded in 1869, was the first major labor organization in the United States. The Knights organized unskilled and skilled workers, campaigned for an eight hour workday, and aspired to form a cooperative society in which laborers owned the industries in which they worked.

The Knights’ membership collapsed following the 1886 Haymarket Square riot in Chicago. By 1886 the American Federation of Labor (AFL), an alliance of skilled workers’ trade unions, was growing.

8 0
2 years ago
Read 2 more answers
How do i do a coordinate plane
Nataly [62]

Answer:

To find out the coordinates of a point in the coordinate system you do the opposite. Begin at the point and follow a vertical line either up or down to the x-axis. There is your x-coordinate. And then do the same but following a horizontal line to find the y-coordinate.

Step-by-step explanation:

3 0
3 years ago
Round 1,393 to the nearest thousand
myrzilka [38]
The answer is 1,000 4 or below you round down and 5 or higher you round up
6 0
3 years ago
Read 2 more answers
Is a measure of 26 inches​ "far away" from a mean of 16 ​inches? As someone with knowledge of​ statistics, you answer​ "it depen
alexandr402 [8]

Answer: Hello!

In a normal distribution, between the mean and the mean plus the standar deviation, there is a 34.1% of the data set, between the mean plus the standar deviation, and the mean between two times the standard deviation, there is a 16.2% of the data set, and so on.

If our mean is 16 inches, and the measure is 26 inches, then the difference is 10 inches between them.

a) if the standar deviation is 2 inches, then you are 10/2 = 5 standar deviations from the mean.

b) yes, is really far away from the mean, in a normal distribution a displacement of 5 standar deviations has a very small probability.

c) Now the standar deviation is 7, so now 26 is in the range between 1 standar deviation and 2 standar deviations away from the mean.

Then this you have a 16% of the data, then in this case, 26 inches is not far away from the mean.

3 0
3 years ago
Other questions:
  • Mariah lives in a $75,000 wood house in the country with contents valued at
    13·1 answer
  • 1,-4,-9,-14,-19 what’s the 5th term
    8·2 answers
  • A 22-foot ladder is placed against a vertical wall of a building with the bottom of the ladder standing on level ground 17 feet
    14·1 answer
  • Find the measurement of the indicated angle to the nearest degree
    13·1 answer
  • What's simple random sampling? Is it possible to sample data instances using a distribution different from the uniform distribut
    14·1 answer
  • Barry's deck of cards contains 40 blue cards and 70 red cards max's deck of cards contains the same number of blue cards but the
    10·1 answer
  • Please help, I can't figure out how to set this up. There's supposed to be 2 equations.
    14·1 answer
  • The ratio of the length to the breadth to the length of a tin is 5:4:3. The bottom area of the tin is 80 square inches. What is
    12·1 answer
  • Rachel is setting up for her birthday . rachel wants to put the same number of chairs around each table . how many chairs will r
    5·1 answer
  • NEED HELP ASAP PLEASE PLEASE PLEASE​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!