Fifth Term of Arithmetic Sequence

Submitted by ladislav.foltyn on Fri, 04/19/2019 - 18:11
Project ID: 
5000000047
Accepted: 
SubArea: 
Arithmetic sequences
Template: 
B
Question: 
Find the 5th term of the given arithmetic sequence, where an is its nth term, d is its common difference, and sn is the sum of the first n terms of this sequence.
Question Row 1: 
a3=2, a8=−8
Answer Row 1: 
−4, *−2, 2, 4, 6
Question Row 2: 
s4=14, a1=−1
Answer Row 2: 
3, 8, *11, 14, 15
Question Row 3: 
a1=2, a2=−2
Answer Row 3: 
*−14, −12, −6, 0, 4
Question Row 4: 
s3=9, d=2
Answer Row 4: 
1, 5, 7, *9, 13
Question Row 5: 
a4=10, a6=300
Answer Row 5: 
150, 154, *155, 160, 161
Question Row 6: 
a1=3, d=−1
Answer Row 6: 
−2, *−1, 0, 1, 7
Question Row 7: 
$s_{10}=145$, $a_{10}=19$
Answer Row 7: 
9, 10, 12, 13, *14
Question Row 8: 
a10=9, d=3
Answer Row 8: 
−9, *−6, −3, 0, 24
Tex: 
% tiket 32158 \pocetsloupcu{5}