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
notsponge [240]
2 years ago
6

Round final answers to 3 decimal places.

Mathematics
1 answer:
irina [24]2 years ago
6 0

There are 651.335 million cells in the petri dish after 11 hours and the cells will reach 1 billion cells after 14.068 hours

<h3>How to determine the number of cells after 11 hours?</h3>

The given parameters are:

At t = 0, Bacteria = 140 million

At t = 6, Bacteria = 320 million

This can be represented as:

f(0) = 140

f(6) = 320

An exponential function is represented as:

f(t) = f(0) * r^t

When t = 6, we have:

320 = 140 * r^6

Divide both sides by 140

r^6 = 2.28571428571

Take the 6th root of both sides

r = 1.15

So, we have:

f(t) = f(0) * 1.15^t

Substitute f(0) = 140

f(t) = 140 * 1.15^t

After 11 hours, we have:

f(11) = 140 * 1.15^11

Evaluate

f(11) = 651.33

Hence, there are 651.335 million cells in the petri dish after 11 hours

Time to reach 1 billion cells

This means that

f(t) = 1 billion i.e. 1000 million

So, we have:

1000 = 140 * 1.15^t

Divide by 140

1.15^t = 7.14285714286

Take the logarithm of both sides

t * log(1.15) = log(7.14285714286)

Divide both sides by log(1.15)

t = 14.068

Hence, the cells will reach 1 billion cells after 14.068 hours

Read more about exponential functions at:

brainly.com/question/2456547

#SPJ1

You might be interested in
Please help me i do not understand explain how you answer the following questions.
dlinn [17]

For 6, you could divide 56 kilometers by 8 kilometers to get 7 kilometers. Multiply 7 by 5 to get 35. There would be 35 miles in 56 kilometers

7 0
3 years ago
Different problem same topic please help
BlackZzzverrR [31]

Answer:

see below

Step-by-step explanation:

y = 5x - 31

y = mx + b

where m = slope

slope of a parallel line = 5

slope of a perpendicular line = - 1/5

7 0
3 years ago
What is 49849 x 83582<br> What is 96395 x 9384<br> What is 8994 x 9692<br> What is 4048 x 2048
Tju [1.3M]

Answer:

49849 x 83582 = 4166479118

96395 x 9384 = 904570680

8994 x 9692 = 87169848

4048 x 2048 = 8290304

Hope this helped

Step-by-step explanation:

Please mark me as brainliest :D

7 0
3 years ago
Read 2 more answers
Use the table to answer the question.
Over [174]

Answer:

in the survey, 16 out of 80 students who where asked favored chicken nuggets.

so we need to calculate like this:

530 * 16/80

=530 * 1/5

=530/5

=106

hope this helps your understanding, wish you good grades

3 0
3 years ago
The price of a DVD is $24.00 plus 8.25% sales tax. What is the sales tax on the DVD in dollars and cents?
Ray Of Light [21]

Answer:

2.04 so 2 dollars 4 cents

Step-by-step explanation:

i added 8.25

7 0
3 years ago
Other questions:
  • Help !! can somebody please help me doing a test need answers ASAP
    6·1 answer
  • Solve for the variable R<br><br> C=1/8Rt
    6·2 answers
  • brody is working two summer jobs, making $10 per hour babysitting and making $15 per hour cleaning tables. In a given week, he c
    15·1 answer
  • I need help with the work to find this answer
    6·2 answers
  • A triangular sail has base of 4 feet and a height of 5 1/2 feet. What is the area of the sail?
    12·2 answers
  • Help would be appreciated :)
    8·1 answer
  • What is the equation in slope-intercept form of the line that passes through the point(-4,7) and is perpendicular to y=4x+15
    12·1 answer
  • Which of the following is an example of a system of three linear equations in theee variables
    13·2 answers
  • What are the two categories of fees?
    15·2 answers
  • There is a pair of parallel sides in the following shape.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!