+0  
 
0
609
1
avatar+546 

18) Without grapging, determine whether shows exponetial growth or decay?

y=129(1.23)^x

 

26)Suppose you deposit $ 2000 in a savings account that pays interest at an annual rate of 4%. If no money is added or withdrawn from the account, answer the following questions.

a. how much will be in the account after 3 years

b. how much will be in the account after 18 years

c. how many years will it take for the account to contain $2500

d. how many years to contain $3000

 

28)  write an exponential function to model the situation. find the amount

a polulation of 1,860,000 decreases 1.5% each year for 12 years

 

 
 Aug 12, 2014

Best Answer 

 #1
avatar+118680 
+5

18 shows growth because as x gets bigger so does y.

26. You will use the compound interest formula     PV=P(1+r)^n

That is a start for you anyway. 

 Aug 12, 2014
 #1
avatar+118680 
+5
Best Answer

18 shows growth because as x gets bigger so does y.

26. You will use the compound interest formula     PV=P(1+r)^n

That is a start for you anyway. 

Melody Aug 12, 2014

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