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# Find the indicated sum of the geometric series on the first swing, pendulum makes an arc 8 in. long. on each successive swing, the arc is 1/4 the length of the preceding arc. find the total distance the pendulum has travelled at the end of the fourth swing? pls. me to solve this problem

• Réponse publiée par: enrica11

1.) S7 = 6554

2.) S8 = 255

3.) ??

4.) S15 = 6990.24

5.) ??

• Réponse publiée par: 09389706948

3. Write a geometric series for each geometric sequence.

a) 1, 4, 16, 64, 256, . . . b) 20, -10, 5, -2.5, 1.25,...

4. Which series appear to be geometric? If the series could be geometric,

determine S5.

a) 2 + 4 + 8 + 16 + 32 + ... b) 2 - 4 + 8 - 16 + 32 - ...

c) 1 + 4 + 9 + 16 + 25 + ... d) -3 + 9 - 27 + 81 - 243 + ...

A

1 4 16 64 256 . . . 20  10 5  2.5 1.25  ...

The series could be geometric.

S5 is: 2 4 8 16 32  62

The series could be geometric.

S5 is: 2  4 8  16 32  22

The series is not geometric. The series could be geometric.

S5 is: 3 9  27 81  243  183

Step-by-step explanation:

• Réponse publiée par: brianneaudreyvuy

8 and 8/9 or 8.89

Step-by-step explanation:

S=6(1-r⁴)/1-r

=6(1-1/81)/1-1/3

=6(81/81-1/81)/3/3-1/3

=6(80/81)/2/3

=480/81/2/3

reciprocal 2/3 and multipy with 240/81

=480/81 time 3/2

=1440/162

divide both side by 9

=160 and 18

divide boths side by 2

=80 and 9

=80/9

=8 and 8/9 or 8.88888888889 or 8.89

• Réponse publiée par: kuanjunjunkuan

(-9)+6+(-4)

-7

Step-by-step explanation:

sana naka tulong po

• Réponse publiée par: 09389706948

find the sum of each geometric sequence

1. 2+4+8+16+32

2. 3+9+27+81

find the indicated sum of the geometric series

11. 8-16+32+...,S8

12. 3+12+48+...,S10

13. 4+2+1+..., S10

• Réponse publiée par: kurtiee

Step-by-step explanation:

S8=36(1/6^8-1)

r-1/6

36(0.999999404)

-1/6

-35.99997857

-1/6

215.9998714

• Réponse publiée par: cbohol56

The answer is there is no sum because you cant solve for the sum of this series because the ratio is greater than 1.

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Find the indicated sum of the geometric series on the first swing, pendulum makes an arc 8 in. long...