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HELP! Find the 40th term of the arithmetic sequence. –1, –5, –9, –13, –17, ... −157 −159 −160 −161

HELP! Find the 40th term of the arithmetic sequence. –1, –5, –9, –13, –17, ... −157 −159 −160 −161
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4 votes
HELP!

Find the 40th term of the arithmetic sequence.
–1, –5, –9, –13, –17, ...
−157
−159
−160
−161

User Yan Koshelev
by
7.9k points

1 Answer

3 votes
A(n)=a+(n-1)d
A(40)= -1+(40-1)-4
A(40)= -1+39(-4)
A(40)= -1+(-156)
A(40)= -157
User Santosh
by
8.0k points
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