soup6
soup6
17-06-2017
Mathematics
contestada
Pliz help me on this one need help pliz
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leeyah188
leeyah188
17-06-2017
You could make an equation using the arithmetic sequence. Which is, a(n)=a(1)+(n-1)(d)
Plug in the given information.
a(n)=1+(n-1)(-1/3)
with our constructed equation, we could now find any term.
a(9)=1+(9-1)(-1/3)
a(9)=-5/3
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