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PilotLPTM [1.2K]
3 years ago
6

Which of these is an example of exponential decay?

Mathematics
2 answers:
Nataly [62]3 years ago
8 0
I would say A is the only logical answer
Volgvan3 years ago
6 0
Yes try A hope that helps
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A concert hall has 12 seats in the first row, 14 seats in the second row, 16 seats in the third row, and so on. If the pattern c
Marrrta [24]

Given:

The number of seats in the first row is <em>a</em>₁ = 12.

The series of the increasing number of seats is 12, 14, 16......

The objective is to find the total number of seats in the first 12 rows.

Explanation:

The difference between the number of seats in each row can be calculated by the difference between the successive terms of the series.

\begin{gathered} d=14-12=2 \\ d=16-14=2 \end{gathered}

The number of rows to be calculated is <em>n</em> = 12.

To find the number of seats:

The number of seats presents in the first 12 rows can be calculated as,

S_n=\frac{n}{2}\lbrack2a_1+(n-1)d\rbrack

On plugging the obtained values in the above equation,

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Hence, the total number of seats in the first 12 rows is 276.

8 0
10 months ago
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