Quiz about Find Sum of N Terms and First Term Geometric Series

Question 1

Use the formula S_n to find the sum of the first five terms of the geometric sequence.

Accepted Answer

124/3

Answer

41

Answer

42

Answer

125/3

Question 2

Find the sum of the geometric series.

Accepted Answer

248

Answer

124

Answer

120

Answer

240

Question 3

Use the formula S_n to find the sum of the first five terms of the geometric sequence.

Accepted Answer

22

Answer

2/3

Answer

18

Answer

21

Question 4

Find the sum of the geometric series.

Accepted Answer

-732

Answer

732

Answer

244

Answer

-244

Question 5

Find the sum for the following series.

Accepted Answer

49

Answer

3.14

Answer

1.33

Answer

1.66

Question 6

Find the sum for the following series.

Accepted Answer

-682

Answer

44

Answer

-162

Answer

324

Question 7

Find the sum for the following series.

Accepted Answer

49

Answer

3.14

Answer

1.33

Answer

1.66

Question 8

What is the sum of the first ten terms of the sequence 4, -12, 36, -144 . . . ?

Accepted Answer

-59,048

Answer

59,050

Answer

-78,732

Answer

118,096

Question 9

What is the sum of the first 10 terms for the following geometric series:
2-6+18-54+...

Accepted Answer

-29524

Answer

59048

Answer

524288

Answer

3069

Question 10

Find the sum of the infinite geometric series, if it exists:

5 + 4 + 3.2 + 2.56 + ...

Accepted Answer

25

Answer

5

Answer

-1

Answer

0.8

Question 11

What is the sum of the first 10 terms for the following geometric series:
1+1/2+1/4+1/8+1/16+...

Accepted Answer

1.998

Answer

0.999

Answer

0.002

Answer

9.8

Question 12

Find the indicated sum for the geometric series.
S₆ for (-4/5) + 8 + (-80) + 800 + ....

Accepted Answer

_S6 = 72,727.2

Answer

_S6 = 21,845

Answer

_S6 = 72,000

Answer

_S6 = -128,840.8

Question 13

Find the sum of a geometric series where

a₁=4, r = -2 , a_n = 16,384

Accepted Answer

10,924

Answer

-10,921.3333333

Answer

10,922

Answer

-10,924

Question 14

Evaluate the sum of the geometric series:

-1 + 5 - 25 + 125 + ... + 78,125

Accepted Answer

65104

Answer

56732

Answer

-1/6

Answer

65816

Question 15

A geometric sum has g₂=18 and g₅=486. Find the sum of the first 9 terms.

Accepted Answer

59,046

Answer

1,536

Answer

177,156

Answer

None of these

Question 16

A geometric series is as follows: 40 + 36 + 32.4 + ...

Find the sum of this series.

Accepted Answer

400

Answer

300

Answer

500

Answer

600

Question 17

Which of the following represents the SUM of a geometric series with 8 TOTAL terms and whose FIRST TERM is 3 and whose COMMON RATIO is 4?

Accepted Answer

65,535

Answer

32,756

Answer

42,560

Answer

28,765

Question 18

Evaluate (that is, find the sum) the geometric series below:

4, - 8 , 16 - 32..., n = 7

Accepted Answer

518

Answer

195

Answer

516

Answer

145

Question 19

Evaluate the geometric series below:
a₁ = -2, a_n = -1458, r = 3

Accepted Answer

-2186

Answer

-2408

Answer

1

Answer

-2703

Question 20

What is the SUM of the first 10 terms for the following geometric series:

2-6+18-54+...

Accepted Answer

-29524

Answer

59048

Answer

524288

Answer

3069

Find Sum of N Terms and First Term Geometric Series

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