A population of bacteria grows according to the function p(t) = po · 1.42, where t is measured in hours. If
the initial population size was 1,000 cells, approximately hoy long will the it take the population to exceed 10,000
cells? Round your answer to the nearest tenth.

Answers

Answer 1

Answer:

The time duration for the population to exceed 10,000 is approximately 6.6 hours

Step-by-step explanation:

The given equation for the population of a bacteria is presented as follows;

[tex]p(t) = P_0 \cdot 1.42^t[/tex]

Where;

t = The time duration in hours

The initial population of the cells = 1,000

Therefore, at t = 0, P(0) = 1,000 = P₀ × 1.42^0

∴  P(0) = 1,000 = P₀ × 1 = P₀

P₀ = 1,000

When the population is 10,000, we have;

P(t) = 10,000 = 1,000 × 1.42^t

∴ 1.42^t = 10,000/1,000 = 10

㏒(1.42^t) = ㏒(10) = 1

∴ t × ㏒(1.42) = 1

t = 1/㏒(1.42) = 6.56649071898

∴ The time duration for the population to exceed 10,000, t ≈ 6.6 hours.


Related Questions

Miles read 4 books in the first half of March. By the end of March, the library had added Miles to the top-readers board for reading more than 10 books in a month.Let x represent how many books Miles read in the second half of March. Which inequality describes the problem?

Answers

Answer:

[tex]x>6[/tex]

Here, [tex]x[/tex] denotes number of books read by Miles in the second half of March

Step-by-step explanation:

Given: Miles read 4 books in the first half of March.

Also, Miles read more than 10 books in a month.

[tex]x[/tex] denotes number of books read by Miles in the second half of March.

To find: inequality that describes the problem.

Solution:

Total number of books read in month of March = Number of books read by Miles in the first half of March + Number of books read by Miles in the second half of March =  [tex]4+x[/tex]

Also, Miles read more than 10 books in a month.

Therefore,

[tex]4+x>10\\x>10-4\\x>6[/tex]

Find the slope of the line that passes through the pair of points (6,-2) and (5,-4).
Show all work necessary and write your final answer in the box.

Answers

Answer:

slope = -10/7

Step-by-step explanation:

co-ordinates = (6,-2) (5,-4)

slope = (y² - y¹) / (x² - x¹)

slope = (-4 - 6) / (5 - (-2))

slope = (-10) / (5+2)

slope = (-10) / 7

slope = -10 / 7

Answer:

10/7

Step-by-step explanation:


Luis saved 5/8 of his pay. What percent of his pay did he save?

Answers

It’s 62.5%

Have a great day! The steps are down below

need help with this please

Answers

Answer:

-2/5

Step-by-step explanation:

Exactly the opposite of the sign, opposite of + is negative (-)

pls helpppppppppppp!

Answers

Answer: g= -1/12

Step-by-step explanation:

I just solved it hope I helped

find the slope of the line of best fit shown below.

Answers

The Answer is A, 1/2

The local pizzeria is charging $12.50 for a medium pizza with no toppings. Each topping costs $1.20 each. The variable, P, to represent the price and the variable, t, to represent the number of toppings. Which of the following models is correct?

a) P = 12.50t + 1.20

b) P = 1.20t + 12.50

c) t = 12.50P + 1.20

d) t = 1.20P + 12.50

Answers

Answer:

B is the correct answer!

Answer:

im thinking B

Step-by-step explanation:

Which of the following add carbon dioxide to the atmosphere

Answers

Answer:

Carbon dioxide is added to the atmosphere naturally when organisms respire or decompose (decay), carbonate rocks are weathered, forest fires occur, and volcanoes erupt. Carbon dioxide is also added to the atmosphere through human activities, such as the burning of fossil fuels and forests and the production of cement.

Step-by-step explanation:

Answer:

Step-by-step explanation: The first one on the left

answer both and i will give brianlist

Answers

Answer:

1. Perpendicular

2. y=5x+7

Step-by-step explanation:

brainliest please?

What are the coordinates of the image of AABC after a dilation with center (0,0) and a scale factor of 3? ​

Answers

Answer:

factor of 3

Step-by-step explanation:

How many ways can you write one whole as a fraction

Answers

Answer:

infinite

Step-by-step explanation:

you could say 1/1 or 4/4 or 146798245/146798245

any number over itself is a whole

Does that answer it? I feel like I'm missing something

Answer:

Any

Step-by-step explanation:

You can write one whole by making the numerator and denominator the same number. Examples:      2/2      3/3      4/4      5/5      6/6      7/7      8/8      9/9     10/10      100/100      20/20

I NEED HELP ASAP

the table shows how much jose earns at his part-time job. at the rate he is paid,how much would jose make if he worked 9 hours

Answers

I think the answer is Class B

Answer:

Its B

Step-by-step explanation:

see if you divided all the classes money by their students you take the biggest amount from each class and that is your answer

PLEASE HELPPPP ASAP!!!! I REALLY NEED IT! WILL MARK BRAINLIEST!!!!
I PUT ALL MY POINTS INTO THIS QUESTION

Answers

Answer:

3.3

Step-by-step explanation:

d = (10 - 4) + (8 - 3)

d = 6 + 5

d = square root of 11

d = 3.31662479 or 3.3

I'll be expecting that brainliest :)

Solve please. Correctly
3(1 - 2a) = -3a - 18

Answers

Answer:

a = 7

Step-by-step explanation:

3(1 - 2a) = -3a - 18

3 - 6a = - 3a - 18

Add 18 to each side:

3 + 18 - 6a = - 3a - 18 + 18

21 - 6a = - 3a

Add 6a to each side:

21 - 6a + 6a = - 3a + 6a

21 = 3a

3a = 21

Divide each side by 3:

3a ÷ 3 = 21 ÷ 3

a = 7

.
Sydney has a points card for a movie theater,
She receives 35 rewards points just for signing up.
She earns 5.5 points for each visit to the movie theater,
She needs at least 90 points for a free movie ticket.
Which inequality can be used to determine w, the minimum number of visits Sydney
needs to earn her first free movie ticket?

Answers

Answer:

35+5.5w>90

Step-by-step explanation:

35+5.5x>90

it would be this sign > but with a line under it..the amount of points she racks up can be greater or equal to 90

             

Which system of equations is best represented by the graph?

Answers

Answer:

it's the first one

Step-by-step explanation:

since all of them go up to 8 on the graph it

the graph represents it going down since the first one is the only one to go down that one represents the graph precisely.

I need help on this question ​

Answers

Answer:

1. equal

2. add to 180

3. equal

4. add to 180

Step-by-step explanation:

as 1 and 3 are linear pairs

2 and 4 are vertically opposite angles

Need this !!!! Badly

Answers

Answer:

78

Step-by-step explanation:

pls help with math !

Answers

Answer:

181 Square cm.

Step-by-step explanation:

In the diagram, △ABC∼△CDE. Write an equation for line k

Answers

Answer:

Step-by-step explanation:

Line AB is parallel to line CD (k) so they have the same slope.

slope=m=(y2-y1)/(x2-x1)

m=(6-0)/(4-0)

m=6/4=1.5

y=mx+b, we know m=1.5 so

y=1.5x+b, and we know it passes through point (4,0) so we can solve for b

0=1.5(4)+b

0=6+b

b=-6 so line k is

y=1.5x-6

Select no real solution, one real solution, or infinitely many real solutions for each of the following equations.
No Real Solution One Real Solution Infinitely Many Real Solutions
√x – 13=-4
2√x+10=8
2/x-1= 3/x+2

Answers

Answer:

one real solution

no real solution

one real solution

Step-by-step explanation:

Jim's parents keep a chart on the wall where they mark how much Jim grows each year. When Jim was 15, he grew 1/4 of an inch and when he was 16, he grew 1/2 of an inch. In total, how much did Jim grow in during those two years?

Answers

Answer: 3/4 inch

Step-by-step explanation:

When Jim was 15, he grew 1/4 of an inch and when he was 16, he grew 1/2 of an inch.

His growth during those two years will be:

= 1/4 + 1/2

= 1/4 + 2/4

= 3/4 inch

His growth increased by 3/4 inches.

MATH HELP WILL MARK BRANLIEST
In a certain Algebra 2 class of 21 students, 10 of them play basketball and 9 of them play baseball. There are 8 students who play neither sport. What is the probability that a student chosen randomly from the class plays both basketball and baseball?

Answers

Answer:

6/21 or 2/7

Step-by-step explanation:

on delta math

solve the inequality

Answers

the answer would be -9

Can someone answer this

Answers

Irk i 4?! H/Xavier gg y. Ggbjg 674. Hh

need help on my geomrty homework

Answers

The first one is the correct answer

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

Answer:

You like to lift weights!!!!

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

Dan took out a 24-year loan for $111,000 at an APR 0f 7.7%, compounded monthly, while Forrest took out a 24-year loan for $96,000 at an APR of 7.7%, compounded monthly. Who would save more by paying off his loan 13 years early?

Answer: Dan Would save more Since he has $15,000 more in principal.

Answers

Answer: he would save15,000

Step-by-step explanation:

10. Select all of the phrases that could be represented by the algebraic expression 2k - 4
a. The difference between number k and 4

b. 4 fewer than the product of 2 and a number k

c. The product of 2 and the quantity 4 and a number k

d. 4 less than 2 times a number k

Answers

i think the answer would be d

Read the excerpt from "What to the Slave is the Fourth of July?”

The feeling of the nation must be quickened; the conscience of the nation must be roused; the propriety of the nation must be startled; the hypocrisy of the nation must be exposed; and its crimes against God and man must be proclaimed and denounced.

How does the repetition of the word “must” affect the tone of the piece?
The repetition shows that the speaker is concerned about something.
The repetition draws attention to the speaker’s anger.
The repetition suggests that the speaker is intimidating and demanding.
The repetition intensifies the speaker’s sense of urgency.

Answers

Answer:

The repetition intensifies the speaker's sense of urgency.

Step-by-step explanation:

Answer:

D The repetition intensifies the speaker’s sense of urgency.

Step-by-step explanation:

The repetition intensifies the speaker’s sense of urgency.

Solve: -4x = 20

A.) x = 5
B.) x = 24
C.) x = -5
D.) x = 16

Answers

Answer:

C.) x = -5

Step-by-step explanation:

-4x = 20

x = -5

-4(-5) = 20

Answer:

C) x=-5

Step-by-step explanation:

-4x=20

divide both sides by -4.....

-4x÷-4=20÷-4

x=-5

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