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defon
3 years ago
9

What is the value of the 19th term in the sequence -1, -5, -9, ...? -77 -73 -71 -22

Mathematics
1 answer:
lorasvet [3.4K]3 years ago
3 0
All right i just earned that today! 
This is the formula An = A1 + ( n-1 )D 
You would take A19 = -1 + ( 19 - 1 ) -4 
-1 + 18(-4) 
-1 + -72
-73 
Hope that helped! 
:)
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