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
DerKrebs [107]
3 years ago
8

Alexus is modeling the growth of bacteria for an experiment in science. She assumes that there are B bacteria in a Petri dish at

12:00 noon. In reality, each bacterium in the Petri dish subdivides into two new bacteria approximately every 20 minutes. However, for the purposes of the model, Alexus assumes that each bacterium subdivides into two new bacteria exactly every 20 minutes.
2a. Create a table that shows the total number of bacteria in the Petri dish at 1/3 hour intervals for 2 hours starting with time 0 to represent 12:00 noon.








2b. Write an equation that describes the relationship between total number of bacteria T and time h in hours, assuming there are B bacteria in the Petri dish at h=0.





2c.If Alexus starts with 100 bacteria in the Petri dish, draw a graph that displays the total number of bacteria with respect to time from 12:00 noon (h=0) to 4:00 p.m. (h=4). Label points on your graph at time h=0,1,2,3,4.








2d. For her experiment, Alexus plans to add an anti-bacterial chemical to the Petri dish at 4:00 p.m. that is supposed to kill 99.9% of the bacteria instantaneously. If she started with 100 bacteria at 12:00 noon, how many live bacteria might Alexus expect to find in the Petri dish right after she adds the anti-bacterial chemical?


PLS HELPPPPP
Mathematics
2 answers:
Nuetrik [128]3 years ago
5 0

Answer:

ur mom

Step-by-step explanation:

ur mom

mihalych1998 [28]3 years ago
3 0

 

dcwwfr3111ecfb ewfrlqkhew rlkfq

You might be interested in
What expression is equivalent to 12 - 1/2(x + 12)
lyudmila [28]
Distribute the -1/2 to both x and 12

-1/2(x) = -1/2x
-1/2(12) = -6

12 -  (-1/2x) - 6

Simplify: Note, two negatives = one positive

12 + 1/2x - 6

Simplify: combine common numbers together

12 - 6 + 1/2x

6 + 1/2x


1/2x + 6 is your equivalent expression


hope this helps
7 0
3 years ago
An arts academy requires there to be4 teachers for every68 students and3 tutors for every30 students. How many students does the
Murrr4er [49]

Answer:

1.17

2.10

3.7

Step-by-step explanation:

1. 68÷4=17

2. 30÷3=10

3.70÷10=7 ( 10 used from 2.)

6 0
2 years ago
Please help top and bottom.
Helga [31]
1. Perimeter
22a + 2(6a + 8) -4 = p

[I got 22a from 12a + 10a]

2. If p = 250, what is a?

22a + 2(6a + 8) - 4 = 250
Distributive property
22a + 12a + 16 - 4 = 250
Add like terms
34a + 12 = 250
Subtract 12 by both sides
34a = 238
Divide 34 by both sides
a = 7
3 0
2 years ago
Find the midpoint of if A(-3, 8) andB(-7, -6).
Mama L [17]

Answer:

(-5,1)

Step-by-step explanation:

8 0
2 years ago
What is the area of ΔABC? Round to the nearest tenth of a square unit.
Westkost [7]
Draw a perpendicular segment from point C to the midpoint of AB. Using the trig sine function sin 80 = x/6 which gives 5.91 for the perpendicular segment. Using the formula A=1/2bh, A= 1/2 x5.91x2sqrt 2  A= 8.4
3 0
3 years ago
Read 2 more answers
Other questions:
  • Jilk Inc.'s contribution margin ratio is 62% and its fixed monthly expenses are $45,000. Assuming that the fixed monthly expense
    13·1 answer
  • 65% of what is 39? ​
    15·2 answers
  • Which is a solution to the equation y=2x+5
    15·2 answers
  • Show one way to count from 82 to 512
    10·2 answers
  • A weight-management researcher was interested in whether the size of breakfast coulddeter overall food consumption throughout th
    11·1 answer
  • You have $700 to buy a new carpet for you bedroom write an inequality that represents the cost c per 14 squares for your new car
    9·1 answer
  • The weight of male american between the ages 18 to 25 is normally distributed, with mean of 162.7 lb and a standard deviation of
    6·2 answers
  • Can someone please help me with this
    11·1 answer
  • HELP!!!!! Question in picture!!!!
    8·1 answer
  • HELP ASAP!!! Identify the interior angles and explain how you know. THANKS!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!