For t > 0, let H (t) = 68 +93(0.91) represent the temperature of a cup of coffee in degrees Fahrenheit & minutes after it is brought to class. 1. Find formulas for H (t + 15) and H (t) + 15. 2. Graph H (t), H (t+15), H (t) + 15. 3. Describe the transformations of the graph of H (t) that will result in the graphs of H (t+15) and H (t) + 15. 4. Find lim+→∞ H(t) and describe the practical significance of the horizontal asymptota

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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I need help with questions 1-5 please. I am having a hard time understanding what is being asked.

For \( t \geq 0 \), let \( H(t) = 68 + 93(0.91)^t \) represent the temperature of a cup of coffee in degrees Fahrenheit \( t \) minutes after it is brought to class.

1. Find formulas for \( H(t + 15) \) and \( H(t) + 15 \).

2. Graph \( H(t) \), \( H(t + 15) \), \( H(t) + 15 \).

3. Describe the transformations of the graph of \( H(t) \) that will result in the graphs of \( H(t + 15) \) and \( H(t) + 15 \).

4. Find \(\lim_{t \to \infty} H(t)\) and describe the practical significance of the horizontal asymptote.

5. Describe in practical terms a situation modeled by the function \( H(t + 15) \). Do the same for \( H(t) + 15 \). [Hint: Think about your work from the previous part.]
Transcribed Image Text:For \( t \geq 0 \), let \( H(t) = 68 + 93(0.91)^t \) represent the temperature of a cup of coffee in degrees Fahrenheit \( t \) minutes after it is brought to class. 1. Find formulas for \( H(t + 15) \) and \( H(t) + 15 \). 2. Graph \( H(t) \), \( H(t + 15) \), \( H(t) + 15 \). 3. Describe the transformations of the graph of \( H(t) \) that will result in the graphs of \( H(t + 15) \) and \( H(t) + 15 \). 4. Find \(\lim_{t \to \infty} H(t)\) and describe the practical significance of the horizontal asymptote. 5. Describe in practical terms a situation modeled by the function \( H(t + 15) \). Do the same for \( H(t) + 15 \). [Hint: Think about your work from the previous part.]
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