anonymous
  • anonymous
Difference equations
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
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anonymous
  • anonymous
need help with checking what I have
amistre64
  • amistre64
5 pages?

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anonymous
  • anonymous
yes! just want to check a couple and do one
anonymous
  • anonymous
do you know how to do #1...need to check it
anonymous
  • anonymous
http://www.aw-bc.com/ggts/ Ch.12 for reference
amistre64
  • amistre64
linear would be degree 1 that I am aware of but let me check the material
anonymous
  • anonymous
I have c as linear
amistre64
  • amistre64
c and d are both linear
amistre64
  • amistre64
d is not linear...
amistre64
  • amistre64
its got rationals in it that make it go haywire
anonymous
  • anonymous
ok right was seeing y sub n as exponent in denominator not just constant : (
anonymous
  • anonymous
gonna graph it...confused with homo and nonhom..have a and b as homo...had c too but changed
amistre64
  • amistre64
if you reform d it become 1 + y^2/2y and thats just a curvey mess
amistre64
  • amistre64
homo or nonhomo; you gotta pick all that apply? or just one?
anonymous
  • anonymous
all that apply -3 parts
amistre64
  • amistre64
the order is the difference beteen "n"s
amistre64
  • amistre64
a = 2nd order
amistre64
  • amistre64
b,c,d are all 1st orders
anonymous
  • anonymous
got that one...b-2 c- 1
amistre64
  • amistre64
b = n, n+1 .... a difference of 1; 1st order
anonymous
  • anonymous
ok gotcha
amistre64
  • amistre64
a = hom, its got a zero on the right hand side :)
anonymous
  • anonymous
understand that
anonymous
  • anonymous
looked at wrong checks only had a as homo just wanted to check that
amistre64
  • amistre64
i think only d is nonhomo
amistre64
  • amistre64
homogeneity aint my strength lol..... i guess you just need an eye for it.
anonymous
  • anonymous
don't understand other property other than =0 to make it hom...
anonymous
  • anonymous
LOL!
anonymous
  • anonymous
I have 2a need 2b
anonymous
  • anonymous
i'll try and figure2-4...how about 5 got 6 ...loved that one
amistre64
  • amistre64
you need 5?
amistre64
  • amistre64
i as trying to determine what a "complete" solution meant :)
anonymous
  • anonymous
yes
anonymous
  • anonymous
ok that is cool ; )
anonymous
  • anonymous
didn't want to weigh you down...
amistre64
  • amistre64
B(n+1) = ....
amistre64
  • amistre64
what level mathis this stuff anyways :)
amistre64
  • amistre64
B(n+1) = (.06)Bn - 25,000...so far
anonymous
  • anonymous
Precalculus...real-world
amistre64
  • amistre64
B(n+1) = (.06)Bn - 25,000(.03)n-1
amistre64
  • amistre64
pre calc real world eh...... you must be going to harvard or something lol
amistre64
  • amistre64
thats almost right in the equation...
anonymous
  • anonymous
i know right...UIUC in Illinois...sad part is 1-credit math module not even full course..smh
amistre64
  • amistre64
any idea how to get the 25000 to start at (times 1) :) Bn+1 = (.06)Bn - 25,000(.03)
amistre64
  • amistre64
B(n+1) = (.06)Bn - 25,000(1+.03).....
amistre64
  • amistre64
B(n+1) = (.06)Bn - 25,000 + 25,000(.03)^n something like this
amistre64
  • amistre64
B(n+1) = (.06)Bn -25,000(1.03)^(n-1)
anonymous
  • anonymous
http://www.docstoc.com/docs/18298713/Planning-for-retirement
amistre64
  • amistre64
i got it....im sure I do :)
amistre64
  • amistre64
its pretty much a loan in a loan....
amistre64
  • amistre64
at B0; n=0
amistre64
  • amistre64
n=1 lol....thats it :)
amistre64
  • amistre64
I got the balance increaseing at .06 each time; then subtract that 25000(+.03 for interest) for the next few years
amistre64
  • amistre64
you agree?
anonymous
  • anonymous
I'm pluggin in calc. and I'm missing something
amistre64
  • amistre64
B(n+1) = (.06)Bn -25,000(1.03)^(n-1) the first year we need a "0" to make that (1.03) = 1
amistre64
  • amistre64
\[B_{n+1}=(.06)B_{n} - 25000(1.03)^{n-1}\]
amistre64
  • amistre64
de we start this from n=0 or n=1?
anonymous
  • anonymous
got that let me keep trying
anonymous
  • anonymous
0
anonymous
  • anonymous
for the power we need n =1 so 1-1=0 and anything to 0 power is 1
amistre64
  • amistre64
correct
amistre64
  • amistre64
im writing it into a program :)
1 Attachment
anonymous
  • anonymous
neat....iterations inputed one at a time? not working
amistre64
  • amistre64
havent programed it ALL yet lol..let me give this a test run
amistre64
  • amistre64
getting warmer :)
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amistre64
  • amistre64
it should be 1.06 ...not .06
amistre64
  • amistre64
no....thats aint it ...
anonymous
  • anonymous
292, 250 for n=1
amistre64
  • amistre64
B+B(.06) = B(1.06)
amistre64
  • amistre64
Balance + 6% :)
amistre64
  • amistre64
293,000 should be it
amistre64
  • amistre64
300000(1.06)-25000 = 293000
amistre64
  • amistre64
this is it ;)
1 Attachment
amistre64
  • amistre64
forogt to change the "dressing" to 1.06 lol
amistre64
  • amistre64
1 Attachment
amistre64
  • amistre64
its good to go ;)
amistre64
  • amistre64
itll last 15 years :)
amistre64
  • amistre64
programming I can do ;)
amistre64
  • amistre64
html and javascript, we can do so much together :)
anonymous
  • anonymous
that is Awesome...learned a lilt programming-html but you are GREAT
amistre64
  • amistre64
taught meself that too ;)
anonymous
  • anonymous
never thought to use it...just the calc...thanks!
amistre64
  • amistre64
libraries shuttin down, good luck with the rest of it :)
anonymous
  • anonymous
ok thanks...what state are you in
amistre64
  • amistre64
florida ;)
anonymous
  • anonymous
Cool! just moved to IL from SC...ttyl

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