Pitanje 15
15.
In 2006, there were approximately 233,468 cell phone subscribers in the US. During the next 9 years, the number of cell phone subscribers increased by about 6.25% each year.
Write an exponential growth model to represent this situation using f(t).
In 2006, there were approximately 233,468 cell phone subscribers in the US. During the next 9 years, the number of cell phone subscribers increased by about 6.25% each year.
Estimate the number of cell phone subscribers in 2014.
You buy a new computer and accessories for $1200. The value of the computer decreases by 30% each year. Write an exponential model giving the computer's value (V) after t years.
You buy a new computer and accessories for $1200. The value of the computer decreases by 30% each year. Use your previous answer to find the value of the computer after 4 years.
You deposit $9,500 in a account for 6 years. How much money is in the account if the interest rate is 3.5% and the account compounds quarterly?
You deposit $9,500 in a account for 6 years. The rate of interest is 3.5% and the account compounds daily. How much more money is in this account as compared to compounding quarterly (use your previous answer)?
You want to have $10,000 in your account after 5 years. The account pays 2.75% annual interest compounded monthly. Find the initial deposit.
From 1990 to 2000 the population of Connecticut can be modeled by
where t is the number of years since 1990. What was the population in 1990?
From 1990 to 2000 the population of Connecticut can be modeled by
where t is the number of years since 1990. What is the growth factor?
From 1990 to 2000 the population of Connecticut can be modeled by
where t is the number of years since 1990. What is the percent increase?
From 1990 to 2000 the population of Connecticut can be modeled by
where t is the number of years since 1990. Estimate the population in 2005.
You deposit $2200 in an account that pays 3% annual interest. After 15 years, you withdraw the money. How much money did you withdraw if the interest was compounded quarterly?
You deposit $2200 in an account that pays 3% annual interest. After 15 years, you withdraw the money. How much money did you withdraw if the interest was compounded continuously?
You want $8,500 for a down payment on your new car. An account pays 4.75% interest compounded continuously. How much money do you need to open the account now, so in 7 years you reach your goal.
