Find the indicated term of the arithmetic sequence with first term a 1and common difference d. Find a 6, when a 1equalsnegative 50, and dequalsnegative 3. a 6=?

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asked Oct 25, 2019 206k views

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Find the indicated term of the arithmetic sequence with first term a 1and common difference d. Find a 6, when a 1equalsnegative 50, and dequalsnegative 3. a 6=?

Mathematics
college

ThinkingStiff asked

by ThinkingStiff

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1 Answer

5 votes

a6=?
a1=-50
d=-3

an=a1+(n-1)d
n=6→a6=a1+(6-1)d
a6=a1+5d
Replacing a1=-50 and d=-3
a6=-50+5(-3)
a6=-50-15
a6=-65

Answer: a6=-65

Afacat answered Oct 30, 2019

by Afacat

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