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Exponential Growth and Decay
Questions (85)
Determine whether the function represents exponential growth or decay. Then find the y-intercept.
y=4(5/6)^x
15 answers
asked by
Steve
8,887 views
Part 1: How are exponential growth and decay present in the real world? Give at least 2 examples for exponential growth and 2
19 answers
asked by
fluffy
9,085 views
what would 6(1/3) be equal to? I'm currently doing Exponential Growth and Decay, but I don't quite understand how to do this
6 answers
asked by
Lily
826 views
The population of a town is modeled by the equation P=3485e0.12t, where “P” represents the population as of the year 2000.
Ac
6 answers
asked by
Anonymous
1,223 views
The function A = A0e-0.01386x models the amount in pounds of a particular radioactive material stored in a concrete vault, where
4 answers
asked by
brad
3,651 views
A town has a population of 2000 people at time t = 0.
In each of the following cases, write a formula for the population, P, of
5 answers
asked by
Natalie
4,864 views
Is my answer correct? The population of a city is 160,000 and is increasing at a rate of 1.5% each year. Approximately when will
2 answers
asked by
Kellie
704 views
The population of a county increases at a rate proportional to the existing population. If the population doubles in 20 years,
5 answers
asked by
Lee
1,573 views
A culture of bacteria is growing at a rate of 4e^0.5t per hour, with t in hours and 0 ≤ t ≤ 20.
A) How many new bacteria will
4 answers
asked by
KingS.
809 views
1) A radioactive substance decays exponentially. A scientist begins with 150 milligrams of a radioactive substance. After 26
4 answers
asked by
Hai
2,860 views
Complete the following table
Growth rate is k, Doubling time is T Population Growth Rate Doubling time Country A 1.3% yr ? years
3 answers
asked by
Antonio
4,865 views
thirty percent of a radioactive substance decays in four years. assuming the decay is exponential, find the half life of the
3 answers
asked by
Yasmine
1,085 views
Suppose a population of 160 crickets doubles in size every month. The function gives the population after x months. How many
10 answers
asked by
Anonymous
4,160 views
A bank account is growing by 4.3 % per year. Find the doubling time.
Round your answer to the nearest integer. Can someone
4 answers
asked by
James
1,250 views
An investor puts $500 in an account that pays 3% interest compounded annually. Find the account balance after 6 years.
4 answers
asked by
IDC
1,727 views
A bacterial population starts at 500 and doubles every four days. Find a formula for the population after t days and find the
3 answers
asked by
Sandra Gibson
676 views
Can you help me with this? I don't know how to figure it out.
the population growing at an annual rate r will triple in a time t
5 answers
asked by
Issie
1,054 views
A bacteria culture grows with constant relative growth rate. The bacteria count was 784 after 2 hours and 117649 after 6 hours.
W
3 answers
asked by
Help me plz!
1,048 views
Please help just real quick!!
suppose that the amount of algae in a pond doubles every 4 hours.if the pond initially contains 90
5 answers
asked by
Regina
1,705 views
In a controlled breeding program at Melbourne Zoo, the
population (P) of koalas at t years is modeled by P = P_0 * 10^(kt). Given
4 answers
asked by
fun times
651 views
A type of bacteria doubles in number every 12 hours. After 2 days, there are 48 bacteria. How many bacteria were there at the
4 answers
asked by
Taylor
1,434 views
Suppose you know that a population,P, of termites is growing continuously in an exponential manner. (Use the formant P=P0e^kt)
2 answers
asked by
Vic
597 views
The rat population in a major metropolitan city is given by the formula n(t)=82e^0.025t where t is measured in years since 1990
4 answers
asked by
Sarah
387 views
You buy a new computer for $2100. The computer is decreases by 5% annually. When will the computer have a value of $600?
Y =
3 answers
asked by
Jordan
1,083 views
I have two questions:
1. You want to make an investment in a continuously compounding account earning 18% interest. How many
3 answers
asked by
Ellie
1,638 views
If 0 is t when the year is 1982, what
would be the value of t in 1990? How many years is that? From 1982 to 1992 the cost of the
1 answer
asked by
.
418 views
A bacterial culture starts with 800 bacteria and doubles in size every half hour.
(a) How many bacteria are there after 5 hours?
2 answers
asked anonymously
60 views
20. Growth of an Account If Russ (see Exercise 19) chooses the plan with continuous compounding, how long will it take for his
2 answers
asked by
Phoebe
813 views
The population of rabbits in a national forest is modeled by the formula P=8,600+650 ln(t+1) where "t" is the number of years
5 answers
asked by
Jake
630 views
In 1960, the population was 291000. In 1970, the population was 480000. Assuming exponential growth, what is the annual percent
1 answer
asked by
Megan
410 views
The population P of a particular city, Metropia, is growing at a rate proportional to the current population.
The population at
1 answer
asked by
Nina
514 views
Exponential Growth and Decay
Find the half-life of a radioactive substance that decays by 5% in 9 years.
2 answers
asked by
Josh
865 views
PLEASE HELP WITH THIS-ITS DUE APRIL 5TH, 2011!!!
During a past epidemic, the number of infected people increased exponentially
2 answers
asked by
Lindsey
465 views
You can find the size of a population after t years using the formula N = No(1 + r)t where No is the initial size of the
2 answers
asked by
Anonymous
813 views
1. Suppose you invest $1,000 in a CD that is compounded continuosly at the rate of 5% annually. What is the value of this
6 answers
asked by
Chopsticks
629 views
Im currently learning Exponential Growth and Decay and there is one problem that I don't understand...
From this: 30/9, how do
3 answers
asked by
Lily
482 views
If 15% of the radioactive material decays in 5 days, what would be the percentage of amount of original material left after 25
5 answers
asked by
Anonymous
2,203 views
Given the equation A=250(1.1)t, you can determine that the interest is compounded annually and the interest rate is 10%. Suppose
5 answers
asked by
Amaya
2,209 views
A business owner opens one store in town A. The equation p(x)=10,000(1.075)^t represents the anticipated profit after t years.
5 answers
asked by
Junior
1,881 views
The amount of money, in dollars, in a savings account after x years is given by M(x) = 10,000(1.03)x. What does the value 1.03
3 answers
asked by
Anonymous
1,149 views
A wooden artifact from an ancient tomb contains 70% of the carbon-14 that is present in living trees. How long ago was the
3 answers
asked by
Tarah
967 views
The caribou population of an area has been growing at an annual rate of 2% ,
A) If there are 850 initially, how long before there
2 answers
asked by
Anonymous
915 views
If a radioactive isotope has a half-life of 20 hours, how many half-lives have occured after 80 hours have passed?
a 3 b 2 c 5 d
1 answer
asked anonymously
73 views
Find the annual percent increase or decrease that y = 0.35(2.3)x models. (1 point) Responses 230% increase 230% increase 130%
1 answer
asked anonymously
47 views
Question! If you put a bacteria in a beaker that doubles itself every minute at 11 and it's full at 12 at what time is it half
2 answers
asked by
Sagar
803 views
I am asked to give an example of exponential growth and decay in my math class.
Would it be ok for me to say that an allowance is
2 answers
asked by
Anonymous
776 views
This question deals with Exponential Growth and Decay Test. Question:Consider the following:Start by tossing 30 dice. Then
2 answers
asked by
Mary
768 views
N(t)=2000e^(1.1t)
the continuous growth rate is 110% effective growth rate?__% Q(t)=65e^(0.09t) continuous growth rate is 9%
2 answers
asked by
Evenlyn
688 views
For this problem my equation is Y=70+110e^kt
but i keep getting it wrong any suggestions? A roasted turkey is taken from an oven
2 answers
asked by
someone
550 views
Andrea invested $3,000 in an online currency. If the value of the currency increases at a rate of 14% per year, the situation
1 answer
asked anonymously
204 views
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Subcategories (17)
Bacteria Growth
Compound Interest
Epidemic Modeling
Evaluating Exponential Equations
Examples
Population growth and decay
Practice
Radioactive Decay
Real World Examples
Real-life Examples
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