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ASAP!!!! 10 points!!!! Help!!??!?! ALGEBRA 2!!!!!!!?
What is the 6th term of the geometric sequence where a1 = 625 and a3 = 25?
A) 0.0016
B) 0.008
C) 0.04
D) 0.2
What is the sum of the geometric sequence -3, 18, -108, … if there are 7 terms?
A) 411,772
B) -308,829
C) 159,964
D) -119,973
What is the sum of a 7-term geometric series if the first term is -11, the last term is -45,056, and the common ratio is -4?
A) -143,231
B) -36,047
C) 144,177
D) 716,144
What is the sum of an 8-term geometric series if the first term is 14 and the last term is -3,919,104?
A) -3,599,175
B) -3,359,230
C) -3,119,285
D) -2,879,340
2 Answers
- Anonymous9 years agoFavorite Answer
1. 625,125,25,5,1,1/5,1/125,1/625 (sequence is divided by 5)
Answer A:1/625 or .0016
2.-3,18,-108,648,-3888,23328,-139968 ( sequence is *-6)
Answer is D
3.-11,44,-176,704,-2816, 11264,-45056 ( sequence is *-4)
Answer is B
4.14,-84,504,-3024,18144,-108864,653184,-3919104 ( sequence is *-7)
Answer is B
Hope that I helped you!
- Anonymous4 years ago
slope = (y2-y1) _______ (x2-x1) x1 = a million, y1 = -2, x2 = 2, y2 = -3 slope(m) = (-3-(-2)) / (2-a million) slope(m) = -3+2 / a million slope(m) = -a million/a million slope(m) = -a million y=-x+b substitute x and y with -2 and -a million -2=-a million(a million) +b -2+a million = b b=-a million y=-x-a million <(b)