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Algebra2 Help? Math? ASAP? 10 points?
What is the 35th term of the arithmetic sequence where a1 = 13 and a17 = -83?
A) -200
B) -197
C) -194
D) -191
What is the sum of a 17-term arithmetic sequence where the first term is 8 and the last term is -88?
A) -542
B) -680
C) -893
D) -954
3 Answers
- PranilLv 79 years agoFavorite Answer
Tn = a1 + (n – 1)d
T17 = a1 + 16d = – 83
13 + 16d = – 83
16d = – 96
d = – 6
T35 = a1 + 34d
= 13 + 34(– 6)
= – 191 ----- D
for 2nd question data insufficient.
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- Anonymous9 years ago
answer to #1 is D
sequence is a, a+n, a+2n......., a+34n
a=13
a+16n=-83
13+16n=-83
16n=-96
n=-6
x=a+34n
x=13+34*-6
x=13+-204
x=-191=D
- rantanenLv 44 years ago
the component of a rectangle is comparable to lenght * width. for this reason, if the section is 40 two the lenght must be 21 and the width 2. 2 * 21 = 40 two Now think you halved the width to a million and you doubled the dimensions to 40 two. Now: a million * 40 two = 40 two for this reason the component of the hot rectangle continues to be 40 two
