The table lists future concentrations of a certain greenhouse gas in parts per billion (ppb), if current trends continue. a. Let x = 0 correspond to 2010 and x = 20 correspond to 2030. Find C and a so that f(x) = Ca* models the data. b. Estimate the gas concentration in 2023. Year 2010 2015 2020 2025 2030 Gas (ppb) 0.66 0.77 0.89 1.03 1.19 a. C = a (Round to the nearest hundredth.)

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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The table presents projected future concentrations of a specific greenhouse gas in parts per billion (ppb), assuming current trends persist.

### Table of Gas Concentrations

| Year | 2010 | 2015 | 2020 | 2025 | 2030 |
|------|------|------|------|------|------|
| Gas (ppb) | 0.66 | 0.77 | 0.89 | 1.03 | 1.19 |

### Questions

#### a. Find Constants for the Growth Model
- Define \( x = 0 \) for the year 2010 and \( x = 20 \) for the year 2030.
- Determine constants \( C \) and \( a \) so that the equation \( f(x) = Ca^x \) accurately represents the data in the table.

\[ 
C = \_ \_ 
\]
\[ 
a \approx \_ \_ \_ \_ \_ \_ 
\]
(Round to the nearest hundredth.)

#### b. Estimate for 2023
- Calculate the estimated gas concentration for the year 2023.
Transcribed Image Text:The table presents projected future concentrations of a specific greenhouse gas in parts per billion (ppb), assuming current trends persist. ### Table of Gas Concentrations | Year | 2010 | 2015 | 2020 | 2025 | 2030 | |------|------|------|------|------|------| | Gas (ppb) | 0.66 | 0.77 | 0.89 | 1.03 | 1.19 | ### Questions #### a. Find Constants for the Growth Model - Define \( x = 0 \) for the year 2010 and \( x = 20 \) for the year 2030. - Determine constants \( C \) and \( a \) so that the equation \( f(x) = Ca^x \) accurately represents the data in the table. \[ C = \_ \_ \] \[ a \approx \_ \_ \_ \_ \_ \_ \] (Round to the nearest hundredth.) #### b. Estimate for 2023 - Calculate the estimated gas concentration for the year 2023.
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