Concept explainers
a.
To write: an exponential growth function that represents the weight of the catfish after t weeks during the 8-week period.
a.
Answer to Problem 18E
Explanation of Solution
Given:
Initial weight of catfish =
Increase in weight = 23% each week
Concept used:
Exponential growth function:
Here, the y is the final value, a is the initial value, and r is the rate of growth (in decimal form).
Calculation:
Substituting
Conclusion:
So, the weight of the catfish after t weeks during the 8-week period is given by the function
b.
the weight of catfish after 4 weeks (round off to nearest thousandth).
b.
Answer to Problem 18E
Approximately
Explanation of Solution
Given:
The weight of the catfish after t weeks during the 8-week period is given by the function:
The weight of catfish after 4 weeks is found by substituting
Conclusion:
So, weight of catfish after 4 weeks will be about
Chapter 6 Solutions
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