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
worty [1.4K]
3 years ago
9

A common inhabitant of human intestines is the bacterium Escherichia coli. A cell of this bacterium in a nutrient-broth medium d

ivides into two cells every 20 minutes. The initial population of a culture is 71 cells. (a) Find the relative growth rate. (Assume t is measured in hours.) k =
Mathematics
1 answer:
LenaWriter [7]3 years ago
4 0

Answer:

Step-by-step explanation:

Given that a common inhabitant of human intestines is the bacterium Escherichia coli.

A cell of this bacterium in a nutrient-broth medium divides into two cells every 20 minutes.

Initial population = 71 cells

Doubles in 1/3 of an hour

P = P_o (2)^{t/3}, where t is the no of hours.

P = 71 (2)^{t/3}

Rate of growth = derivative of P

= 71(2)^{t/3} *(1/3)ln 2\\= \frac{71}{3} (2)^{t/3} ln 2

You might be interested in
In a study of 250 adults, the mean heart rate was 70 beats per minute. Assume the population of heart rates is known to be appro
alexira [117]
Hello,
Please, see the attached file.
Thanks.

3 0
3 years ago
Ramona owns a orange grove, and needs to harvest at least 2616 oranges to cover the costs of running the grove. If each tree bea
GuDViN [60]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the following information :

Number of oranges Ramona needs to harvest in other to cover the cost of running the orange Grove = 2616

Average number of oranges each tree bears = 62

Oranges needed for charity donation = 360

Number of orange trees needed in the Grove :

Total number of oranges needed :

(Charity + running the Grove)

(360 + 2616) = 2976 oranges

Number of trees needed = total number of oranges needed / average number of oranges beared per tree

Number of trees needed = 2976 / 62

= 48 trees

Number of trees needed ≥ 48

4 0
3 years ago
Two workers finished a job in 12 days. How long would it take each worker to do the job by himself if one of the workers needs 1
FromTheMoon [43]

Answer:

20 days

Step-by-step explanation:

t = time required by one worker to complete the job alone

(t+8) = time required by the other worker

So:

7.5/ t + 7.5/ (t + 8) = 1

Solve for t.

...

t = 12 days, the first guy working alone

The other worker would finish the job in 20 days.

4 0
3 years ago
Read 2 more answers
Which pair of numbers is relatively prime? A. 5 and 75 B. 12 and 51 C. 7 and 20 D. 15 and 21
Zielflug [23.3K]

The only number not divisible by anything except itself and 1, was C. 7

8 0
3 years ago
Read 2 more answers
Find the width of a cereal box that has a volume of 2,112 cm^3 and is 22 cm long and 24 cm high.
allochka39001 [22]
Divide 2112 by 24 and 22 to find your answer.

the answer is 4.

brainlisest please.
3 0
3 years ago
Other questions:
  • 4 2/5 * 10 using distributive property
    10·1 answer
  • Penelope jogs three laps around the playground to keep in shape. The playground is rectangular with width of 163 m and a length
    5·1 answer
  • PLEASE HELP!!
    11·2 answers
  • There are 4 truck in the fleet of 10 cars. 2 cars were randomly selected. Make a series of distribution of a discrete random var
    14·1 answer
  • 6 less than a number is -4 what is the number?
    14·2 answers
  • Help is all I need..
    14·2 answers
  • Choose the correct written expression for: 25 – (3 x 4).
    5·1 answer
  • Subtract 1 3/8 from the sum of 3 3/4 and 5 1/6<br>​
    5·1 answer
  • Gimme the radius circumference and area<br> plsss i beg
    5·1 answer
  • What is 0.1 to 0.2 percent changes, to test your brain.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!