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
ra1l [238]
3 years ago
6

A population of bacteria is treated with an antibiotic. It is estimated that 5,000 live bacteria existed in the sample before tr

eatment. After each day of treatment, 40% of the sample remains alive. Which best describes the graph of the function that represents the number of live bacteria after x days of treatment?
Mathematics
2 answers:
choli [55]3 years ago
3 0
<span>It is estimated that 5000 live bacteria existed in the sample before treatment. After each day oftreatment, 40% of the sample remains alive. Which best describes the graph of the function thatrepresents the number of live bacteria after x days of treatment? f(x) = 5000(0.4)x, with a horizontal asymptote of y = 0 f(x) = 5000(0.6)x ...</span><span>
</span>
MrMuchimi3 years ago
3 0

Answer:

Answer is A

Step-by-step explanation:

You might be interested in
If the distribution is really N ( 5.43 , 0.54 ) , N(5.43,0.54), what proportion of observations would be less than 5.05 ? 5.05?
Ipatiy [6.2K]

Answer:

P(X

And we can use the following excel code to find the answer: "=NORM.DIST(-0.704,0,1,TRUE)"

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable of interest for a population, and for this case we know the distribution for X is given by:

X \sim N(5.43,0.54)  

Where \mu=5.43 and \sigma=0.54

We are interested on this probability

P(X

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X

And we can find this probability on this way:

P(Z

And we can use the following excel code to find the answer: "=NORM.DIST(-0.704,0,1,TRUE)"

6 0
3 years ago
Maria had planned to walk 10 1/8 miles on wednesday, if she walked 7 2/8 miles in the morning how far would she need to walk in
Ugo [173]

Answer:

Distance Maria had to walk in the afternoon is 2\frac{7}{8}

Step-by-step explanation:

Lets take that Maria walked x miles in the afternoon.

Distance walked in the morning + distance walked in the afternoon = 10\frac{1}{8}

⇒7\frac{2}{8} +x=10\frac{1}{8}

\frac{58}{8} +\frac{8x}{8} =\frac{81}{8}

\frac{58+8x}{8} =\frac{81}{8}

58+8x=81

8x=81-58\\

8x=23

x=\frac{23}{8}

x=2\frac{7}{8}

7 0
3 years ago
Solve the equation b+(-2)=0
leva [86]

Answer: b=2

Step-by-step explanation:

-2+2=0

So, b would be 2 because -2 plus 2 equals zero

4 0
3 years ago
Read 2 more answers
How do you do this? Yeah
Aliun [14]

Answer:

17

Step-by-step explanation:

You have to plug -2 into every x in the function, so:

(-2)^2 - 3 (-2) + 7

4 + 6 + 7

17

7 0
3 years ago
Guysss i need helppppp.... please answer all of them and if u dont know please dont answer
lukranit [14]

Answer:

This says middle school.. What grade are you in? I am in 8th grade and do not know any of that...

I have never seen work near that.........

8 0
2 years ago
Read 2 more answers
Other questions:
  • Help me out Wishing. What are the trigonometric ratios. Write all six.
    12·2 answers
  • Multiple Choice In Mr. Mamer's math class, there are three times as many girls as boys. The girls' mean grade on a recent quiz w
    10·1 answer
  • 2.36 as a simplified fraction.
    14·2 answers
  • Painting a Room
    5·2 answers
  • Choose two statements that are true fo of this expression. 5x^3- 6x^2 - 25/y + 18
    13·1 answer
  • According to General Social Survey of 2016, the population distribution of number of years of education for self-employed indivi
    6·1 answer
  • If a dental patient is charged $65.97 for teeth cleaning, $127.12 for X-rays, and $94.50 for a dental exam, what should his tota
    10·1 answer
  • 1. How many juniors like to watch track?
    14·1 answer
  • given a right triangle with a leg of 8 m and a hypotenuse of 12m and determine the length of the other leg in a simplest radical
    15·1 answer
  • Please help me with these questions and show how u got them, i will mark you brainliest !
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!