Exponential function - examples
- Exponential equation
Solve for x: (4^x):0,5=2/64.
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?
The population grew in the city in 10 years from 14000 to 27500. What is the average annual percentage increase of population?
How many is subsets of set ??
If you deposit 976 euros the beginning of each year, how much money we have at 2.4% (compound) interest after 20 years?
Apply for a $ 20000 loan, the loan repayment period is 19 years, the interest rate 2.3%. How much should I pay for every month (or every year if paid yearly). Example is for practise geometric progression and/or periodic payment for an annuity.
Calculate what member of the sequence specified by ? has value 643.
Calculate how much you earn for 7 years 14000 deposit if the interest rate is 1.8% and the interest period is a quarter.
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?
- Computer revolution
When we started playing with computers, the first processor, which I remember was the Intel 8080 from 1974, with the performance of 0.5 MIPS. Calculate how much percent a year rose CPU performance when AMD Phenom II X4 940 Black Edition from 2009 h
- 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.
What is the annual interest rate on your account if we put 12700 and after 148 days received 12982.6?
- Exponential equation
In the set R solve the equation: ?
- 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.
Determine missing coordinate of the point M [x, 108] of the graph of the function f bv rule: y = 3x
- Deposit 3
After a year had Martin on bank account € 1764. What was the interest rate when the initial deposit was € 1581?
if ?, what is b?
- Car value
The car loses value 15% every year. Determine a time (in years) when the price will be halved.
- 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%?
Determine the number whose decimal logarithm is -4.5.