SOLUTION: help please I'll owe u big time if you can help me with this....THANK YOU Use the geometric sequence of numbers 1, 2, 4, 8,…to find the following: a) What is r, the ratio be

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: help please I'll owe u big time if you can help me with this....THANK YOU Use the geometric sequence of numbers 1, 2, 4, 8,…to find the following: a) What is r, the ratio be      Log On


   



Question 84114: help please I'll owe u big time if you can help me with this....THANK YOU

Use the geometric sequence of numbers 1, 2, 4, 8,…to find the following:
a) What is r, the ratio between 2 consecutive terms?
Answer:
Show work in this space.



b) Using the formula for the nth term of a geometric sequence, what is the 24th term?
Answer:
Show work in this space.



c) Using the formula for the sum of a geometric series, what is the sum of the first 10 terms?
Answer:
Show work in this space

Answer by venugopalramana(3286) About Me  (Show Source):
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help please I'll owe u big time if you can help me with this....THANK YOU
Use the geometric sequence of numbers 1, 2, 4, 8,…to find the following:
a) What is r, the ratio between 2 consecutive terms?
Answer:2
Show work in this space.
2/1 = 4/2 = 8/4 =2

b) Using the formula for the nth term of a geometric sequence, what is the 24th term?
Answer:=2^23
Show work in this space.
AN = A*R^(N-1)
A24=1*2^23

c) Using the formula for the sum of a geometric series, what is the sum of the first 10 terms?
Answer:(2^10)-1
Show work in this space
SN=A[(R^N)-1]/(R-1)
S10=1*(2^10-1)/1