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Can anyone help me solve 0.1,0.5,0.9,1.3​
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Can anyone help me solve 0.1,0.5,0.9,1.3​

User Chenaren
by
5.8k points

1 Answer

2 votes

Answer:


(14)/(5) or 2.8

To find
S_4 we use formula:


S_n=(n)/(2)*(2a_1+(n-1)*d)

D =
(2)/(5)


a_1=(1)/(10)


n=4

Hope this helps!!!

User Ninja Dude
by
6.1k points
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