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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

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  • Anonymous
    9 years ago
    Favorite 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!

  • Anonymous
    4 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)

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