please help me with this problem about growth and decay.

Please Help Me With This Problem About Growth And Decay.

Answers

Answer 1

Answer:

The population of the town in Iowa after 13 years is 9,130

Step-by-step explanation:

The given parameters of the town are;

The population of the town in Iowa in 2007, a = 12,355

The rate at which the people of the town leave Iowa for Minnesota, r = 2.3% per year

We are required to find the population of the town after t = 13 years

The given population decay function is presented as follows;

[tex]f(t) = a \cdot (1 - r)^t[/tex]

Where;

a = The initial population of the town = 12,355

r = The annual percentage rate at which the people of the town leave Iowa for Minnesota = 2.3% per year = 0.023

t = The number of years over which the population changes = 13 years = 13

∴ f(13) = 12,355 × (1 - 0.023)¹³ = 9130.02734094

Therefore, the population of the town in Iowa after 13 years ≈ 9,130 (we round down to the nearest whole number).


Related Questions

which list shows these numbers in order from least to greatest?

Answers

Answer:

B

Step-by-step explanation:

[tex]\sqrt{9}[/tex] = 3

3[tex]\pi[/tex] = 9.42477

-2.4 = -2.4

-5 = -5

20% = 0.20

Mrs, carp's class has 11 boys and 17 girls. what is the probability that she will randomly chose a girl first and then a boy?

Possible answers ⇒
0.18
0.24
0.33
0.48

WILL GIVE BRAINLIST

Answers

the answer is 0.18, because if you add 11 and 9 you get 20. which means there is 20 total students in the class. the probability of choosing a girl would be 9/20 The probability of choosing the 2nd girl = number of remaining girls / number of all students minus the chosen girl = 8/19
Then , the probability of choosing two girls is :
The probability of choosing 2 girls = 9/20 * 8 /19
= 72/380
= 18/ 95
then the probability of choosing 2 girls is 18/95 so the answer is 0.18

a) 3= x + 7
b) -7a-49

Answers

Answer: b im pretty sure hope this helps :)

Step-by-step explanation:

Answer:

A: x = -4

B: a = -7 (I'm assuming the '-' in front of 49 was supposed to be an '=')

Step-by-step explanation:

A: You need to group the like terms together, and isolate the variable, which in this case is x.

Take the 7 over to the other side, so the equation looks a little bit like this.

3-7 = x.

3-7 is -4, so we've gotten our answer.

x = -4.

B: -7a = 49.

When two negative numbers are multiplied together, the product becomes positive.

49 is 7x7.

-7 times -7 would be 49.

So, in this situation, a would be -7.

a = -7.

BRAINLIST. BRAINLIST. BRAINLIST. PLEASE HELP.

Answers

Answer:

1=140  2=9  3=19

Step-by-step explanation:

Answer:

1=140
2=9
3=19

Step-by-step explanation:

Help I don’t know this you dont have to explain:]

Answers

The total cost next year will be: $10,613.10

Solving:

The total cost of this year

Simply just add up everything that has been given which wouold give you 10,405

The total cost of next year

multiply the total cost of this year by 1.02 to find what the cost would be with a 2% increase which should give you 10,613.1

A sofa is 7 feet 5 inches long. How many inches is the sofa?

Answers

89 inches!

Because each foot is 12 inches and 12*7=84 and 84+5=89!

Decide whether the given expression is a polynomial and tell why or why not.





5. 3x2 – 5x + 2

Answers

Answer:

3x² – 5x + 2 is a polynomial because:

Exponents are whole numbers, and the expression has at least 1 term.

Exponents other than whole numbers can take the form of variables in denominators, and roots which we don't want.

Jared gets 10 heads when flipping a weighted coin 12 times. Based on experimental probability, how many of the next six flip should Jared expect to come up heads?

Answers

Answer:

5

Step-by-step explanation:

Experimental probability = number of tunes an event occurred / total number of trials

Experimental probability of getting head :

10 /12 = 0.833333

Expected number of heads from next 6 flips :

Experimental probability = expected number of heads / number of trials

0.833333 = x / 6

0.83333 * 6 = 5

5 times

Factor the expression: x^2 +10x+9

Answers

Answer:

(x+1)(x+9)

Step-by-step explanation:

Hope this helps!

PLEASE I NEED HELP
uhh whats 1 + 2
I don't get it. I have a feeling its 12 though.

Answers

your answer should be 3 :)

Suppose that 5% of athletes at a certain university are using steroids or other
performance-enhancing drugs (PEDs). Unfortunately, the tests used to detect PEDs
aren't perfect. Suppose that 3% of athletes who are not using PEDs will test positive
and be accused of using PEDs. Meanwhile, 1% of athletes who are using PEDs will test
negative and escape detection. Calculate the probability that a randomly selected
athlete will test positive.

Answers

Answer:

There is a 8.11% of any randomly selected athlete to test positive.

Step-by-step explanation:

To make it easier, let's assume there are 100 athletes

5/100 have it

3/95 do not have it, but will test positive

1% of the 5 athletes who are using PEDs = 0.05%

This means that 4.95/100 will test positive

3/95 = 3.16%

(rounded, if you need a more precise answer, it's 3.1578947368421053)

3.16% + 4.95% = 8.11%

Multiply and combine like terms. Use^ for exponents. (2x-10)(3x-3)

Answers

Answer:

The answer is 5x - 13

Step-by-step explanation:

All we do is add the x's and the other numbers.

2 + 3 = 5 and 10 + 3 = 13

So, the equation is 5x - 13

Hope this helps! :)

PLEASE HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Step-by-step explanation:

A. Right

B. Acute

C. Right

D. Obtuse

A- right B- acute C- right D- obtuse

What is the range of y = -x2 + 6x -4?

Answers

Answer:

Hope this helps :)

HELP ASAP!!! find the lines of symmetry. Select all that apply

Answers

Answer:

B. and D.

Step-by-step explanation:

If you folded that shape along the lines o and m, it would match up.

There are two lines of symmetry m and o. Options B and D are correct.

From the given figure we have to determine the axes of symmetries.

What is a line?

A line is a straight curve connecting two points or more showing the shortest distance between the initial and final points.

Here,
As of the given figure,
There are 2 axes of symmetry first line m and the other is line o.
Line l and line n are not symmetrical lines because the reflection of one portion will not be superimposed with the other.

Thus, there are two lines of symmetry m and o. Options B and D are correct.

learn more about lines here:

brainly.com/question/2696693

#SPJ2    

Determine the next term in the geometric sequence below.
-1, -2, -4, ...

-7
-10
-8
-6

Answers

Answer:

-8

Step-by-step explanation:

The rule for the sequence is ×2

E.g.

-1×2=-2

-2×2=-4

-4×2=-8

Answer:

-8 is the correct answer according to the sequence's rule.

Divide the larger square into 10 equal columns or rectangles. Shade one rectangle. What part of the whole is the shaded rectangle? Write that part as a decimal and a fraction.

Answers

Answer:

[tex]Part=\frac{1}{10}[/tex]

[tex]Part=0.10[/tex]

Step-by-step explanation:

Given

[tex]Columns = 10[/tex]

[tex]Shaded = 1[/tex]

Required

Part of the whole

This is calculated as:

[tex]Part=\frac{Shaded}{Columns}[/tex]

Substitute [tex]Columns = 10[/tex] and [tex]Shaded = 1[/tex]

[tex]Part=\frac{1}{10}[/tex]

[tex]Part=0.10[/tex]

i need help!!!! i have to identify the area and i forgot how to do it and it was due 2 days ago!

Answers

Answer: I think B is the answer.

Step-by-step explanation:

Answer:not sure but

Step-by-step explanation: you can multiply each box, so lets say we have 20 times 7cm you multiply that and you get your answer, so put that a side

and once you multiply in each box add the numbers up and that should get your answer and make sure to add the "cm" at the end

18
A fruit salad was prepared containing 100 g of
acerola cherries, 100 g of kiwifruit, 300 g of
pineapple, and 200 g of strawberries. What is the
total amount of vitamin C, in grams, that is
contained in the listed fruits?
A)0.7g
B)2.069g
C)700g
D)2069g

Answers

Answer to your question is going to be B

pls help and show work i am so screwed if i don’t do well on this

Answers

Answer:

see in the picture mark brainliest if correct

What is the solution to the following graph? Write it as an ordered pair to get credit. ​

Answers

Answer:

(2,6)

Step-by-step explanation:

A carnival game has 160 rubber ducks floating in a pool. The person playing the game takes out one duck and looks at it.
I
f there’s a red mark on the bottom of the duck, the person wins a small prize.
If there’s a blue mark on the bottom of the duck, the person wins a large prize.
Many ducks do not have a mark.

After 50 people have played the game, only 3 of them have won a small prize, and none of them have won a large prize.

Estimate the number of the 160 ducks that you think have red marks on the bottom

Answers

Answer:

I think there are about 16-20 ducks with red marks on them.

Answer:

Around 10 ducks have a red mark

what is more than 1/2 fraction but less than 3/4

Answers

Answer:

2/3

5/8

5/9

7/10

etc.

Can someone help me , explain too it’s special right triangles

Answers

Answer:

10sqrt{2}

Step-by-step explanation:

This is a 45-45-90 right triangle. This means that the two legs are both the same length, call it x, and the hypotenuse is square root 2 times the given leg.  There's a proof for this, but it's long, and you can find it online.    

please tell me where to plot the points and what the solution will be.

Answers

The graph would look like this...


4 people can dig a trench in 3 hours.
How long would it take 9 people?
Give your answer in minutes.

Answers

Answer:

80 minutes.

Step-by-step explanation:

do I need to explain? I hate explaining :(


Which is the minimum or maximum value if the given function
А.
The function has a maximum value of -4.
B.
The function has a minimum value of -4.
C. The function has a maximum value of -3.
D
The function has a minimum value of -3

Answers

...............................no question

Please help me with this I am stuck

Answers

i’m stuck in the dryer step bro

Answer:

450 cm ^3

Step-by-step explanation:

The area of a circular rose garden is 88
square meters.
What is the radius of the garden?

Answers

Answer:

c

Step-by-step explanation:

question in screenshot

Answers

Answer:

10

Step-by-step explanation:

use pythagorean theorm

√(8^2+6^2) = 10

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