Geometric Series Answers
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1
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Which equation represents the partial sum of the geometric series?
A
125 + 25 + 5 + 1B
25 + 5 + 1 + one-fifth
C
1 + one-fifth + StartFraction 1 Over 25 EndFraction + StartFraction 1 Over 125 EndFraction
D
StartFraction 1 Over 125 EndFraction + one-fifth + 5 + 125
2
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A high-interest savings account pays 5.5% interest compounded annually. If $300 is deposited initially and again at the first of each year, which summation represents the money in the account 10 years after the initial deposit?
A
Sigma-Summation Underscript n = 1 Overscript 10 EndScripts 300 (0.055) Superscript n minus 1
B
Sigma-Summation Underscript n = 1 Overscript 10 EndScripts 305.5 (1.055) Superscript n minus 1
C
Sigma-Summation Underscript n = 1 Overscript 10 EndScripts 316.5 (0.055) Superscript n minus 1
D
Sigma-Summation Underscript n = 1 Overscript 10 EndScripts 316.5 (1.055) Superscript n minus 1
3
What is the value of r of the geometric series?
A
0.8B
1.3C
3.0D
3.24
What are the values of a1 and r of the geometric series? 2 – 2 + 2 – 2 + 2
A
a1 = 2 and r = –2B
a1 = –2 and r = 2C
a1 = –1 and r = 2D
a1 = 2 and r = –1Did you find these answers helpful?
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