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Artist 52 [7]
3 years ago
13

Which equation represents the nth term of the sequence {2,1,-4,-7...}.

Mathematics
2 answers:
Gemiola [76]3 years ago
8 0

Answer:

n=-3n+5

Step-by-step explanation:

melomori [17]3 years ago
7 0

Answer:

D

Step-by-step explanation:

I can only answer this if the second term is -1

a = 2

d = -3

t_n = a + (n - 1)*-3

t_n = 2 + -3n + 3

t_n = 5 - 3n      or

t_n = - 3n + 5

That's D

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Step-by-step explanation:

4x+5x-9=15+x

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3 years ago
On a coordinate plane, point M is located at (-5,1) and point N is located at (-5,8)
Free_Kalibri [48]

Answer:

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Step-by-step explanation:

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4 years ago
In an indoor soccer stadium, there are 20 seats in the first row and 31 seats in the second row. Every
Finger [1]
<h3>________________________________________________</h3>

Step-by-step Solution for Part-a:

<u>We know that:</u>

  • Row-1: 20 seats
  • Row-2: 20 + 11
  • Row-x: 20 + (11x - 11)

Since the number of rows in rows x is 20 + (11x - 11), the formula to calculate the number of seats in each row is 20 + (11x - 11).

<h3>________________________________________________</h3>

Step-by-step Solution for Part-b:

<u>We know that:</u>

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  • Obtained rule from part-a: 20 + (11y - 11)

<u>Solution:</u>

  • 20 + (11y - 11) = 174 rows
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  • => y = 165/11
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Hence, the row which has 174 seats is row 15.

<h3>________________________________________________</h3>
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Step-by-step explanation:

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Answer:

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