# Exponential function - examples

- Subsets

How many is subsets of set ?? - Sequence

Calculate what member of the sequence specified by ? has value 643. - Demographics

The population grew in the city in 10 years from 14000 to 27500. What is the average annual percentage increase of population? - Deposit 3

After a year had Martin on bank account € 1764. What was the interest rate when the initial deposit was € 1581? - The city 2

Today lives 273000 citizens in city. How many citizens can we expect in 12 years if their annual increase is 2.5%? - Crystal

Crystal grows every month 2.9 promile of its mass. For how many months to grow a crystal from weight 310 g to 482 g? - Logarithm

Determine the number whose decimal logarithm is -4.5. - Half life

Determine the half life of bismuth, when bismuth weight from the original weight of 32 g was only 2 grams in 242 minutes. - Coordinate

Determine missing coordinate of the point M [x, 108] of the graph of the function f bv rule: y = 3^{x} - Log

if ?, what is b? - Car value

The car loses value 15% every year. Determine a time (in years) when the price will be halved. - Sequence - 5 members

Write first five members of the sequence ? - Bank

Paul put 10000 in the bank for 5 years. Calculate how much you will have in the bank if he not pick earned interest or change deposit conditions. The annual interest rate is 2.4%, and the tax on interest is 11%. - Population

The town has 159,000 inhabitants. 40 years ago there were 185,000. How many people will live in town in 10 years if the average rate in population is as in previous years? - The deposit

Deposit has been placed for one year at an annual rate of 4.5%. After the added interst amount rose to € 2,612.5. Determine initial deposit. - Interest

What is the annual interest rate on your account if we put 12700 and after 148 days received 12982.6? - Doubling

The message is spreading that each day has doubled the number of people who know about it. All know message for 20 days. How long known it eighth people? - Population

What is the population of the city with 3% annual growth, if in 10 years the city will have 60,000 residents? - To the cinema

Jane at 8 am got message that all 1093 school pupils will go to the cinema. Within 20 min she said it to the three friends. Each of them again for 20 minutes said to the other three. In this way the message spread further. At what time all the children in. - Exponential equation

In the set R solve the equation: ?

Do you have interesting mathematical example that you can't solve it? Enter it and we can try to solve it.