Each term is 5 times the previous term, so termr = 5(r-1) (with term1 = 1).
So the 7th term is 57-1 = 56 = 15625.
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5^n
the next number in the sequence 1 5 25 125 is 625
{5, 20, 45, 80, 125} = 5{1, 4, 9, 16, 25} = 5{1², 2², 3², 4², 5²} → U{n} = 5n²
The 8th term is 64. The sequence is the squares of the counting numbers. The nth term is given by t(n) = n².
n2
5^n
.5,.25,.125
the next number in the sequence 1 5 25 125 is 625
It is 0.2
125 25 5 ----- ÷ ------ = ----- 225 25 9
5/7 of 25 = 125 / 7 = 17.857
1/5
{5, 20, 45, 80, 125} = 5{1, 4, 9, 16, 25} = 5{1², 2², 3², 4², 5²} → U{n} = 5n²
Please note that (a) this is a sequence of square numbes, and (b) the sequence starts at 22.
25% of 125= 25% * 125= 0.25 * 125= 31.25
The 8th term is 64. The sequence is the squares of the counting numbers. The nth term is given by t(n) = n².
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