Exponential Growth - Page 5
Questions
- In 1995 america online had about 3,000,000 users.over the next decade users are expected to increase from a few million to the tens of millions. Suppose the number of users increases by 150% by the year 2000.how many users will there be in the year 2000?
- How do you find the formula of an exponential graph given A = (1, 12) and B = (2, 48)?
- How do you multiply and simplify #\frac { x ^ { 2} + 2x y + y ^ { 2} } { 2x ^ { 2} + 2x y } \cdot \frac { x - y } { x ^ { 2} - y ^ { 2} }#?
- How do we use exponential growth and decay in real life?
- How do you determine if the equation #y = (2/3)^x# represents exponential growth or decay?
- How do you find the formula of an exponential graph given (0,4) and (1,4.3)?
- You invest your birthday money in a savings account for at 6.5% interest compounded annually. How do you determine how much birthday money you need to invest to have $350 after 5 years?
- A colony of bacteria is grown under ideal conditions in a lab so that the population increases exponentially with time. At the end of 3 hours there are 10,000 bacteria. at the end of 5 hours there are 40000. How many bacteria were present initially?
- The number of bacteria in a culture grew from 275 to 1135 in three hours. How do you find the number of bacteria after 7 hours?
- What amount borrowed 3 months ago is equivalent to 2650 from now ? Money earns 7.2% compounded quarterly?
- Money is invested into an account earning 4.25% interest compounded annually. If the accumulated value after 18 years will be $25,000, approximately how much money is presently in the account?
- Can anyone explain the logic behind why we used exponantial functions to model bacteria growth?
- A culture of bacteria is growing at a constant rate of 5% an hour. If the culture started with 3000 bacteria at 6:00 a.m. on Tuesday, calculate the approximate time that the bacteria population will reach 72,000?
- You invest $5000 in an account at 5.5% per year simple interest. How much will you have in the account after 5 years?
- A piece of machinery valued at $250,000 depreciates at a fixed rate of 12% per year. After how many years will the value have depreciated to $100,000?
- How do you determine if the equation #y = 1.23(1.02)^x# represents exponential growth or decay?
- The population of Detroit, Michigan was 951,300 in 2000. Detroit has been experiencing a population decline of 1.4% per year since 2000. What is the projected population for 2005 in Detroit?
- Your starting salary at a new company is $34,000 and it increases by 2.5% each year. What will your salary be in 5 years?
- How much money will Nadia have in the bank by her 21st birthday if she received $200 for her 10th birthday and saved it in a bank with a 7.5% interest rate compounded yearly?
- A town's population is currently 10,000. If the population doubles every 38 years, what will the population be 76 years from now?