SOLUTION: Using a calculator. TI-83Plus. Okay i have had a brain lapse and this is a dumb question but I cannot get the same answers that i did previously had using the same calculator(TI-

Question 144608This question is from textbook Mathematics All Around
: Using a calculator. TI-83Plus.
Okay i have had a brain lapse and this is a dumb question but I cannot get the same answers that i did previously had using the same calculator(TI-83 Plus) with the same problem's. I am not calculator savy and this was several chapters back. So I am in a review process for the final.
Plugging in the same numbers into my calculator i do not even come close to answers I had on the problems. Yikes Can someone help me understand what i am now doing wrong?
I've entered them numerous ways and still do not come even close witih the answers that were marked correct on the chapter test.
The problem:
Solve using the formula for the future value of the annuity at the end of the incidicted time period. The amount, frequency of deposits, annual interest, and the time period are given. amount: $200:quarterly: 8%; 9 years. Here is the formula with correct answer of 10,398.87 which was graded on test.
r/n= .08/4 = 4*9=36
Here is how i have it written out on my paper.
A=200 (( 1 + .08/12)^36 -1 /.08/12) = 10,398.87
What am i doing wrong or is my calculator on the fritz?
I entered
200 Parenthesis, Parenthesis 1 + 0.08 parenthesis ^ 36 divided by 12 divided by .08 divided by 12 -1 parenthesis. and I get 77.22520552. Which is no where near 10,398.87. I must have done something different or was it just luck?
Please help me because none of my answers i am calculating today are coming up correct using the (( signs.
If you can help I would extremely be grateful. Thank you.
This question is from textbook Mathematics All Around

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The problem:
Solve using the formula for the future value of the annuity at the end of the incidicted time period. The amount, frequency of deposits, annual interest, and the time period are given. amount: $200:quarterly: 8%; 9 years. Here is the formula with correct answer of 10,398.87 which was graded on test.
r/n= .08/4 ; 4*9=36
------------------------------------
A=200 [( 1 +( 0.08/4))^36 -1] /(0.08/4) = 10,398.87
--------------
Cheers,
Stan H.

RELATED QUESTIONS
Hello to all tutors, glad I found your site. I have checked approx 300 pages but... (answered by stanbon)

I am using the TI 83Plus calculator, I am not sure of what tables I should use to solve... (answered by jim_thompson5910)

Ok so I have been stuck on how to figure out vertex of a parabola and the... (answered by jim_thompson5910)

So I have a TI-84 Plus Silver edition and I am trying to figure out how to calculate the... (answered by waynest)

I know this is a dumb question but if I could please get an answer! Can a linear... (answered by Alan3354)

I have a text question and usually I solve them by using the rule of three, but it does... (answered by checkley75)

Hi I am having great difficulty trying to solve the following:- I have tried puting (answered by amylouise93,jim_thompson5910)

I used quarters to pay a loan from Brad. If I had paid using nickels, I would have needed (answered by MathTherapy)

I am taking and online algebra class in college and my professor gave us a project and... (answered by Edwin McCravy)