f $9,000 had been invested in a certain investment fund on September 30, 2008, it would have been worth $41,270.28 on September 30, 2018. What interest rate, compounded annually, did this investment earn? (Round your answer to two decimal places.)
f $9,000 had been invested in a certain investment fund on September 30, 2008, it would have been worth $41,270.28 on September 30, 2018. What interest rate, compounded annually, did this investment earn? (Round your answer to two decimal places.)
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:If $9,000 had been invested in a certain investment fund on September 30, 2008, it would have been worth $41,270.28 on September 30, 2018. What interest rate, compounded annually, did this investment earn? (Round your answer to two decimal places.)
%

Transcribed Image Text:A family wants to have a $130,000 college fund for their children at the end of 17 years. What contribution must be made at the end of each quarter if their investment pays 7.1%, compounded quarterly? (Round your answer to the nearest cent.)
$
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