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janeou17xn
04.03.2021 •
Mathematics
Pleaseee help asap easyy
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Ответ:
9.7 x 7 = 67.9
67.9 x 2 = 135.8
135.8 + 49 = 184.8
Ответ:
The common ratio of the geometric sequence
is ![\boxed{ - \frac{1}{2}}.](/tpl/images/0316/2886/09766.png)
Further Explanation:
If the first term a and the second term ar is known then, the value of r can be obtained as follows,
The nth term of the geometric sequence can be obtained as,
Given:
The geometric sequence is![768,480,300,187.5, \ldots.](/tpl/images/0316/2886/e306b.png)
The options are as follows,
(a).![-2](/tpl/images/0316/2886/215b4.png)
(b).![- \dfrac{1}{2}](/tpl/images/0316/2886/0b8d4.png)
(c).![2](/tpl/images/0316/2886/05229.png)
(d).![\dfrac{1}{2}](/tpl/images/0316/2886/65080.png)
Explanation:
The first term of the geometric sequence is
, second term of the geometric sequence is 48, third term
, the fourth geometric sequence is 12 and the fifth term of the sequence is ![-6.](/tpl/images/0316/2886/25a19.png)
The common ratio r between the second and first term can be obtained as follows.
The common ratio
between the second and third term can be obtained as follows.
The common ratio of the geometric sequence
is ![\boxed{ - \frac{1}{2}}.](/tpl/images/0316/2886/09766.png)
Option (a) is not correct.
Option (b) is correct.
Option (c) is not correct.
Option (d) is not correct.
Learn more:
Learn more about inverse of the function Learn more about equation of circle Learn more about range and domain of the functionAnswer details:
Grade: High School
Subject: Mathematics
Chapter: Geometric progression
Keywords: geometric sequence, fraction, written as, common ratio, first term, second term, sum of geometric sequence, 768, 480, 300, 187.5.