1 What is the fifth term in the geometric series whose initial term is 128 and common ratio is 1/2

A geometric series is the sum of an unlimited number of terms with a fixed ratio between them.

If denote first term and common ratio respectively, then the term is given by

Put

Put

Put

Therefore,

So, the fifth term is

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a(5)=8

Step-by-step explanation:

it is geometric  so we will use this equation:

a(n)=a1*(r)^(n-1)

and we have a(1)=128 , r=1/2    

So a(n)=128*(1/2)^(n-1)

fifth term : a(5)=128*(1/2)^(5-1)=8

hope this helps

to find the unit price, we must figure out the cost of one item (in this case one dish towel).   to do this, we divide the total price ($7.92) by the number of items bought (for this problem it is 8, because there are eight dish towels in one pack).  

$7.92/8 = $0.99

therefore, the unit price, or the price of one dish towel, is $0.99.

hope this !

y/x=18

step-by-step explanation: