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Finite Geometric Series Answers

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What is the summation notation for the geometric series ?

Question illustration
A
mc007-2.jpg
Option A
B
mc007-3.jpg
Option B
C
mc007-4.jpg
Option C
D
mc007-5.jpg
Option D
2
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What is the approximate value of ? Round your answer to the nearest hundredth.

Question illustration
A
1.25
B
3.00
C
3.75
D
4.25
3

What are the values of r and a1 for ?

Question illustration
A
r = 0.45; a1 = 3
B
r = 0.45; a1 = 8
C
r = 8; a1 = 0.45
D
r = 8; a1 = 3
4

A worker has four different job offers, each with a contract for six years. Assuming the job descriptions are identical, which offer will allow the worker to earn the most over six years?

A
a starting salary of $49,000 with a 3% increase each year
B
a starting salary of $51,000 with a 1% increase each year
C
a starting salary of $48,000 with a 6% increase each year
D
a starting salary of $50,000 with a 2% increase each year
5

Abi takes a job with a starting salary of $100,000 for the first year. She earns a 3% increase each year. To the nearest dollar, how much does Abi make over the first six years?

A
$600,000
B
$618,000
C
$646,841
D
$716,431
6

What is sum of the geometric series ?

Question illustration
A
486
B
726
C
728
D
828
7

What are the values of r and a1 for ?

Question illustration
A
mc004-2.jpg
Option A
B
mc004-3.jpg
Option B
C
mc004-4.jpg
Option C
D
mc004-5.jpg
Option D
8

Which of the following is a geometric series?

A
40 + 50 + 60 + 70
B
40 + 42 + 44 + 46
C
40 + 80 + 40 + 120
D
40 + 20 + 10 + 5
9

Which of the following is a geometric series?

A
6 + 13 + 20 + 27
B
7 + 21 + 35 + 45
C
14 + 21 + 28 + 35
D
2 + 14 + 98 + 686
10

What is the value of ?

Question illustration
A
364
B
484
C
1,365
D
1,456

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