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Which is the 19th term in the sequence : an = -2(n-3)?

answer choices:

19

-32

32

-44

 Apr 29, 2019
edited by kikidylm  Apr 29, 2019
edited by kikidylm  Apr 29, 2019

Best Answer 

 #4
avatar+44 
0

To solve this problem, we can plug in the correct number to solve this problem.

 

Number N

So we can plug in 19 for the number n.

So our equation now is a19 = -2(19-3),

 

From this we can get 16*(-2) = -32. 

 

So our answer would be -32 

 Apr 29, 2019
 #1
avatar+50 
-1

What is the first term of the sequence, because based on the equation given it is imposible for 19 to be the first term

 Apr 29, 2019
 #3
avatar+44 
0

No we kind of dont, thats the whole point of "n". This is an arithmetic sequence problem, and we can use that to solve the problem. We do not always need the first number. All you have to do is plug in 19 as the value as n. Its that simple.

doorknoob  Apr 29, 2019
edited by doorknoob  Apr 29, 2019
 #2
avatar
0

xxxxxxxxx

 Apr 29, 2019
edited by Guest  Apr 29, 2019
 #4
avatar+44 
0
Best Answer

To solve this problem, we can plug in the correct number to solve this problem.

 

Number N

So we can plug in 19 for the number n.

So our equation now is a19 = -2(19-3),

 

From this we can get 16*(-2) = -32. 

 

So our answer would be -32 

doorknoob Apr 29, 2019

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