anonymous
  • anonymous
question is inside :)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
|dw:1353813925701:dw|
anonymous
  • anonymous
A. 16 years B. 54 years C. 2.4 years D. 9 years
tkhunny
  • tkhunny
\(0.29\cdot(1.046)^{t} = 0.60\) Solve for 't'. You will need logarithms.

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anonymous
  • anonymous
how do i do that?
tkhunny
  • tkhunny
Introduce the logarithm \(\log\left(0.29\cdot(1.046)^{t}\right) = \log(0.60)\) Now what?
anonymous
  • anonymous
idk.. but i think the answer is A. 16 years.. is that right?
tkhunny
  • tkhunny
"I think the answer is..." is not ever an acceptable response. In mathematics, you must prove it. Use the logarithm rules. There is a reason why we did that massive problem, before. \(\log(0.29) + t\cdot\log(1.046) = \log(0.60)\) You need to see where ALL of this came from.
anonymous
  • anonymous
kk so what do i do now then?
tkhunny
  • tkhunny
Solve for 't'. You must be able to do this. This is why we invented notation. It will help you. Use the notation, and proper operations on that notation, to solve for 't'. Let's see what you get.
anonymous
  • anonymous
kk thanks!
tkhunny
  • tkhunny
Are you going to show us any work?

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