Finite Geometric Series Answers

20 verified answers2 views
3

Identify the formula that can be used to find the athlete’s salary, in thousands of dollars, for year n?

A
an = 400(0.05)n – 1
B
an = 400(1.05)n – 1
C
an = 400(0.05)n
D
an = 400(1.05)n
4

a4 =

Answer:

463

8

Question text not available

Answers:
Blank 1:400
Blank 2:1.05
13

Which of the following did you include in your response?

A
Add the five terms.
B
Use the formula for the fifth partial sum.
C
The fifth partial sum represents the total amount of money the athlete earns over the first five years.
14

Would you use the same method to find the eighth partial sum as you used to find the fifth partial sum? Why or why not?

Answer:

Yes, I would use the same method because the formula for the nth partial sum of a geometric series, S_n = a1(1 - r^n) / (1 - r), works for any value of n. Using the formula is consistent and efficient

15

a2 =

Answer:

420

17

Which did you include in your response?

A
Yes, I would use the same method.
B
No, I would use a different method.
C
A statement explaining why you would use the same or a different method.
18

a3 =

Answer:

441

19

Which can be used to find the eighth partial sum?

A
mc001-1.jpg
Option A
C
mc001-3.jpg
Option C
B
mc001-2.jpg
Option B

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