There are 4200 bacteria in a lab dish. The population decreases 8%per day. How many bacteria are there after day 1? Round to nearest whole number.

Answers

Answer 1
Answer: after one day I believe it’s 336
Answer 2

Answer:

3864

Step-by-step explanation:

multiply 4200 by .92 to get 92% or 100% -8%


Related Questions

Solve for h.
h − 999 = –341

Answers

i think h is 658 i could be wrong

Answer:

Step-by-step explanation:

=> h=-341+999

=> h= 658

Make me the brainliest pls :))

A roulette wheel has 383838 slots, of which 181818 are red, 181818 are black, and 222 are green. In each round of the game, a ball is tossed in the spinning wheel and lands in a random slot. Suppose we watch 777 rounds of this game, and let RRR represent the number of rounds where the ball lands in a red slot.

Answers

Answer:

Of the 777 rounds of the game in about 368 the ball will land in a red slot.

Step-by-step explanation:

Since a roulette wheel has 383838 slots, of which 181818 are red, 181818 are black, and 222 are green, and in each round of the game, a ball is tossed in the spinning wheel and lands in a random slot, supposing we watch 777 rounds of this game, to determine the approximate number of rounds where the ball lands in a red slot, the following calculation must be performed:

383838 = 100

181818 = X

181818 x 100/383838 = X

18,181,800 / 383838 = X

47.3684 = X

100 = 777

47.3684 = X

47.3684 x 777/100 = X

36,805.24 / 100 = X

368.05 = X

Therefore, of the 777 rounds of the game in about 368 the ball will land in a red slot.

Cooper invested $3,100 in an account paying an interest rate of 2%
compounded quarterly. Robert invested $3,100 in an account paying an
interest rate of 3 % compounded continuously.After 12 years, how much
more money would Robert have in his account than Cooper, to the nearest
dollar?

Answers

Answer:

Robert will have $481 more in his account than Cooper.

Step-by-step explanation:

Compound interest:

The compound interest formula is given by:

[tex]A(t) = P(1 + \frac{r}{n})^{nt}[/tex]

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.

Continuous compounding:

Similar to compound interest:

[tex]A(t) = P(1 + r)^t[/tex]

Cooper:

Cooper invested $3,100 in an account paying an interest rate of 2% compounded quarterly. This means that [tex]P = 3100, r = 0.02, n = 4[/tex]

After 12 years is A(12). So

[tex]A(t) = P(1 + \frac{r}{n})^{nt}[/tex]

[tex]A(12) = 3100(1 + \frac{0.02}{4})^{4*12}[/tex]

[tex]A(12) = 3938.5[/tex]

Cooper will have $3938.5 in his account.

Robert:

Robert invested $3,100 in an account paying an interest rate of 3 % compounded continuously. So [tex]P = 3100, r = 0.03[/tex].

After 12 years.

[tex]A(t) = P(1 + r)^t[/tex]

[tex]A(12) = 3100(1 + 0.03)^{12}[/tex]

[tex]A(12) = 4419.9[/tex]

Robert will have $4419.9 in his account.

How much more money would Robert have in his account than Cooper, to the nearest dollar?

4419.9 - 3938.5 = 481.4

To the nearest dollar, Robert will have $481 more in his account than Cooper.

Kelly purchased 9 planters for a total of $63. She wants purchase another 20 planters at the same unit price.
How much will 20 planters cost?

Answers

Answer

140 :D

Explanation
It’ll be 140, because that’s how much they cost

In a cookie jar there are 9 sugar cookies and 12 snickerdoodle cookies. The cookie are randomly mixed together in the jar. What is the probability of pulling two of the same types of cookies out of the cookie jar in a row without replacement?

Answers

Answer:

The probability of pulling two of the same types of cookies in a row without replacement is [tex]\frac{51}{105}[/tex].

Step-by-step explanation:

There are a total of 21 * 20 = 420 different outcomes (After you take one cookie out, you aren't replacing it, so there will be 20 cookies in the jar on the second grab). There are a total of 9 * 8 = 72 different combinations of two sugar cookies, and 12 * 11 = 132 different combinations of two snickerdoodle cookies, so the total probability of pulling two of the same types of cookies in a row without replacement is [tex]\frac{132+72}{420} = \frac{204}{420} = \frac{51}{105}[/tex].

i need help on this TT

Answers

Answer:

Step-by-step explanation:

4/-2

elementary math! please help Mark brainlist​

Answers

Answer: 1 minute and 43 seconds faster

Step-by-step explanation:

Answer:

1 minute and 43 seconds faster

Step-by-step explanation:

I need he answer pls {WIIL MARK BRAINLIST}

Answers

Answer:

B.  {2, 5, 6, 9}

Step-by-step explanation:

Mean: the sum of all numbers divided by the amount of numbers.

Median: The number between the two middle numbers

-------------------------------------------------------------------------------------------------

Mean: {2 + 5 + 6 + 9} = 22 ÷ 4 = 5.5.

Median: The median of this data set will be 5.5 because it is in between 5 and 6    


can you find the volume for this pls.

Answers

Answer:

Solution given:

base of triangle [b]=10in

height of triangle [h]=12in

length of rectangle [l]=18in

Now

Volume =area of triangle *length=½(10*12)*18

=1080in³

Volume is 1080 cubic inch.

[tex]\huge{ \mathcal{  \underline{ Answer }\:  \:  ✓ }}[/tex]

In the given figure :

[tex] \boxed{ \mathrm{Volume = \dfrac{1}{2} \times 10 \times 12 \times 18}}[/tex]

[tex]1 0\times 12 \times 9[/tex]

[tex]1080 \: in {}^{3} [/tex]

_____________________________

[tex]\mathrm{ ☠ \: TeeNForeveR \:☠ }[/tex]

Choose the best answer to complete the sentence.
If a point lies on the angle bisector of an angle, then it is
[Select)
from the two sides of the angle.
B

Answers

Answer:

Equidistant

Step-by-step explanation:

When we have a point lying on the angle bisector, it stands at an equal distance from the two sides of the angle

The purpose of the angle bisector is to divide the angle into two different equal parts

So, for a point to lie on this, it means it of the same distance from the two points of the angle

five different names were put into a hat. A name is chosen 111 times and the name Karen is chosen 29 times. What is the experimental probability of the name Karen being​ chosen? What is the theoretical probability of the name being​ chosen? Use pencil and paper. Explain how each probability would change if the number of names in the hat were different.

Answers

Answer:

Step-by-step explanation:

As the name Karen is chosen 29 out of 111 times,

the experimental probability of the name Karen being​ chosen = 29/111

As five different names were put into a hat,

the theoretical probability of one name like Karen being​ chosen = 1/5

If the number of names in the hat were different, the experimental probability will still depend on the outcomes. If it is 29 out of 111 times, then the probability stays the same.

But the theoretical probability will be 1 out of the number of names. So it will change.

Answer:

Step-by-step explanation:

P(experimental) = outcome = 29/111

P(theoretical) = P(equal chance) = 1/5

P(expt) no change w/ no. of names

P(theo) changes w/ no. of names

Need help on this please

Answers

Area of the sector = 90/360 ×πr^2

=1/4 ×3.142×6×6

=1/4×113.112

=28.278kilometers square

Approximately 28kilometers square

The County Fair features rides, exhibitions, and games of chance. Luca decides to play Wheel of Letters. To play the game, contestants spin a wheel with 26 equal sections, lettered A through Z. If the pointer lands on any letter in the phrase “COUNTY FAIR,” the contestant wins a prize.
Part B:
Of the first 52 contestants, exactly 12 contestants win the game. How does the actual number of winners compare to the expected number of winners? What needs to happen for the experimental probability to approach the theoretical probability? Explain.

Answers

Answer:

woow

Step-by-step explanation:

Answer:

Step-by-step explanation:

cheese

Find the volume of cylinder

Answers

Answer:

1539.4 rounded

Step-by-step explanation:

Have a great day

Three less than two times a number is 55. What is the number?

Answers

answer:
26

step-by-step explanation:
3 - 2n = 55
-3 -3
-2n = 52
/-2 /-2
n = 26

Answer:26

Step-by-step explanation:

I know this does have to do with school or math but does anyone know if baking soda can clarify your hair

Answers

don’t use it. it can dry ur hair and scalp, strip ur natural oils and cause breakage. if those are chances ur willing to take, then yes.

The following list shows three factors that can either increase or decrease the probability of a Type II error. The sample size is increased. The significance level is increased. The standard error is increased. Which factors alone will cause the probability of a Type II error to increase?

Answers

Answer:

Standard Error is increased.

Step-by-step explanation:

Type 2 error is failure to reject a false null hypothesis. This is a 'false negative' result of hypothesis testing, represented by beta 'β'.

Power of test is 1 - β, which shows probability of accurately stating  a null hypothesis false, when it is actually false.

Increased sample size increases the power of test accuracy, hence reduces type 2 error. Increased level of significance implies higher probability of rejecting a true null hypothesis, ie type 1 (false positive) error. So, it decreases type 2 error.

Standard Error increase implies lower level of t statistic , ie = (x - u) / (s / √ n) Lower the t value, higher is the probability of not rejecting null hypothesis, which implies higher chance of type 2 error.

Type II error is 1 - power of the test. The factor that can alone make the type II error to increase is: Option C: The standard error is increased.



What is Type I and Type II error?

Firstly the whole story starts from hypotheses. The null hypothesis is tried to reject and we try to accept the alternate hypothesis.

The type 1 error occurs if we get false positive conclusion (false positive means we accuse null hypothesis being wrong when it was actually correct).The type 2 error occurs if we get false negative conclusion (false negative means we accept null hypothesis when it was actually false). It is 1 - statistical power of the test. Thus, increasing power of the test decreases this error.

How are the type I error and type II error are related to level of significance?

The probability of committing the type I error is called the significance level of the hypothesis test.

And the more we increase the level of significance, the less area the test statistic gets to fall in, and its chances of falling in region outside level of significance increases, which makes us to reject the null hypothesis more probable, thus, decreasing its chance of tagging as negative, not mattering if true or false.
Thus, increasing level of significance increases the type I error but decreases the type II error.

How is standard error related to type II error?

If it is increases, the likely area for test statistic falling increases, thus, increasing probability of tagging the null hypothesis tagging to be true, so increasing result of test being declared negative, thus, increasing type II error.

How is type II error and sample size related?

Increasing sample size increases statistical power, thus, decreasing the type II error.

Thus, for the given case, as the sampling size is increased, the type II error will decrease, as the significance level is increased, the type II error will decrease, and as the standard error is increased, the type II error will increase with it.

Thus, out of the given factors, only the last factor (increasing the standard error) makes the type II error to get increased.

Thus, the factor that can alone make the type II error to increase is: Option C: The standard error is increased.

Learn more about type II error here:

https://brainly.com/question/26067196

Pls pls pls pls help pls

Answers

Answer:

only 5

Step-by-step explanation:

Find the length of side x in simplest radical form with a rational denominator.

Answers

Answer:

8

Step-by-step explanation:

sin Θ = opp / hyp

Θ = 60

opp = 4

hyp = x

sin 60 = 4 / x                 sin 60 = 0.5     or 1/2

  1/2   = 4 / x

  x/2  =  4

    x   =  8

You are a school photographer taking individual and class pictures for 2 classes of 21 students each. On average, each individual picture takes 3 minutes and a class picture takes 10 minutes. About how long should it take you to take all of the pictures? A 1 hour 3 minutes B 1 hour 13 minutes C 2 hours 6 minutes D 2 hours 16 minutes E 2 hours 26 minutes

Answers

Answer:

C 2 hours

Step-by-step explanation:

hope it's helpful

thank you

A group of adults were surveyed about whether they prefer to carpool or take the bus to work. Which conclusions can be drawn from the results of the survey? Check all that apply. A person in the group who is a man is more likely to carpool. Carpool Bus A person in the group who is a woman is more likely to carpool. Men 51% 49% A person in the group who is a man is more likely to take the bus. There is no association between commuting preferences and gender. Women 49% 51% Total 100% 100%​

Answers

Answer: ITS JUST D

Step-by-step explanation:

Answer: person above me is correct it it’s in fact D

Step-by-step explanation:

I checked his answer it is D

The hypotenuse of a right triangle will be a diameter of the triangle. True or false?

Answers

I think it’s true not 100 percent sure tho

Figure abc is a triangle with a base of 22 inches if abc is dilated by a scale factor of 0.5 what will be the base of the figure

Answers

Answer:

11

Step-by-step explanation:

Scale factor 0.5 means 1/2

so multiply base length with scale factor

22×0.5 = 11

A beach volleyball court is 9 meters wide and 17 meters long. The rope used for the boundary line costs $4.00 per meter. How much would it cost to buy a new boundary line for the court?

Answers

I believe it should be 36.00$
Since the court is 9 meters wide we would have to multiply that by 4 because each meter is 4$

for a March past competition on sports day the house captain of one house cut 25 pieces of ribbon each 1/2 metre in length.what was the length of ribbon cut altogether​

Answers

Answer:

not lenguague spanish

Step-by-step explanation:

that bad

9 gal and 1 pt - 2pt

Answers

please complete the question so we can help you out!! :)

what is the volume of the rectangular prism?​ will give brainliest

Answers

Answer:

30

Step-by-step explanation:

Well if it is 2 blocks wide, you just count the cubes, but if you cant see the blocks behind, then just and the block you see with 2.

my guess

Brainlest? please?

30 is the answer for the question about what you asking

Trent grew 12 plants with 4 seed packets. With 5 seed packets.
how many plants can he grow?

Answers

He can grow 15 plants. I hope this helps

Khan Question :) Please do help no links pls

Answers

Answer:

sqrt(41)

Step-by-step explanation:

Using pythagoras theorem

4/5 of the magnets in George's collection are flags. 1/2 of those flags are U.S. flags.

What fraction of George's magnets are U.S. flags?

Answers

Answer: 2/5 are U.S. flags

4/5 divided by 1/2 = 0.4, which is equivalent to 2/5.

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