anonymous
  • anonymous
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Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
i only need help doing #3 @jim_thompson5910
anonymous
  • anonymous
A(t) = 39,145[(1+ 0.03/12)1/4]^(4)(12)(-45.5) what i have so far
jim_thompson5910
  • jim_thompson5910
the pic doesn't match the problem

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anonymous
  • anonymous
sooo im completely wrong lol just start over then?
jim_thompson5910
  • jim_thompson5910
did you post the wrong pic?
anonymous
  • anonymous
oops i did....
jim_thompson5910
  • jim_thompson5910
you meant to say this right? \[\Large A = P\left[ \left(1+\frac{r}{n}\right)^{\frac{1}{c}} \right]^{cnt}\] \[\Large A = 39145\left[ \left(1+\frac{0.03}{12}\right)^{\frac{1}{4}} \right]^{4*12*t}\]
anonymous
  • anonymous
yes and for t i had -45.5
jim_thompson5910
  • jim_thompson5910
t is time in years how is time negative?
anonymous
  • anonymous
idk but my teacher said that answer was right..
anonymous
  • anonymous
my biggest prob is solving 1.00025^1/4 because i dont have a calculator
jim_thompson5910
  • jim_thompson5910
he said that a negative time value is possible?
jim_thompson5910
  • jim_thompson5910
how strange
jim_thompson5910
  • jim_thompson5910
oh nvm I didn't read #2 fully lol
jim_thompson5910
  • jim_thompson5910
you can use this free online calculator http://web2.0calc.com/
jim_thompson5910
  • jim_thompson5910
if you want to evaluate 1.00025^(1/4), make sure you type that in and hit the equal sign don't forget the parenthesis
anonymous
  • anonymous
idk what im not doing right
jim_thompson5910
  • jim_thompson5910
I'm guessing #3 wants you to solve for r?
jim_thompson5910
  • jim_thompson5910
solve this for r maybe? \[\Large 1+\frac{r}{n} = P\left[ \left(1+\frac{r}{n}\right)^{\frac{1}{c}} \right]^{cnt}\]
jim_thompson5910
  • jim_thompson5910
hmm not 100% sure
anonymous
  • anonymous
\[a(t)=39,145[(1+\frac{ .003 }{ 12 })^{(1/4)}]\] ^(4)(12)(-45.5)
anonymous
  • anonymous
39,145[(1.00025)^1/4]^(-2184) -39,145=1^-2184 -39,145=1 39,145
anonymous
  • anonymous
where did i go wrong
jim_thompson5910
  • jim_thompson5910
which variable are you trying to solve for?
jim_thompson5910
  • jim_thompson5910
or you're just trying to evaluate 39,145[(1.00025)^1/4]^(-2184) ?
anonymous
  • anonymous
i guess just evaluate that cause the question asks to solve for the adjusted intrest rate
anonymous
  • anonymous
i feel like my equations right and i dont know why im getting it wrong ):
jim_thompson5910
  • jim_thompson5910
I'm stuck on the fact that they bring in c = 4, but the 'c' terms cancel (when they divide). This problem is just odd. Hmm
anonymous
  • anonymous
its making me mad cause i know im doing it right
anonymous
  • anonymous
are there any logs in here?
jim_thompson5910
  • jim_thompson5910
this is what I get http://web2.0calc.com/#39145((1.00025)^(1/4))^(-2184)
anonymous
  • anonymous
are there any logs in here?
anonymous
  • anonymous
yeah thats whatt i got to
jim_thompson5910
  • jim_thompson5910
there's the log button at the bottom
anonymous
  • anonymous
@UsukiDoll
anonymous
  • anonymous
@UsukiDoll
anonymous
  • anonymous
i mean to solve this problem
UsukiDoll
  • UsukiDoll
sorry I don't know how this works.

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