SOLUTION: Please help me. Show all steps. Thanks Given the geometric sequence: 33,121,4811... Sequences Find an explicit formula for an. a_n= Find a

SOLUTION: Please help me. Show all steps. Thanks Given the geometric sequence: 33,121,4811... Sequences Find an explicit formula for an. a_n= Find a_10= 2. The purch

Question 1024765: Please help me. Show all steps. Thanks
Given the geometric sequence: 33,121,4811...
Sequences
Find an explicit formula for an.
a_n=

Find a_10=

2. The purchase value of an office computer is 12690 dollars. Its annual depreciation is 1896 dollars.
The value of the computer after 6 years is dollars.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Given the geometric sequence: 33,121,4811...
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Note:: Your posted sequence is not geometric:: 131/33 = 11/3
but 4811/121 is not 11/3
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Assuming 33,131 are the correct first-two terms,
r = 121/33 = 3 2/3 or (11/3)
a(1) = 33
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Find an explicit formula for an.
a(n) = 33*(11/3)^n
-----------------------------
Find a(10) = 33*(11/3)^10 = a very large number
===================================
2. The purchase value of an office computer is 12690 dollars. Its annual depreciation is 1896 dollars.
The value of the computer after 6 years is dollars.
V(t) = 12690-1896t
V(6) = $1314
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Cheers,
Stan H.
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