
Calculus: Early Transcendentals
8th Edition
ISBN: 9781285741550
Author: James Stewart
Publisher: Cengage Learning
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Question
applications of first order

Transcribed Image Text:A thermometer reading 75°F is taken out where the temperature is 20° F. The reading is 30°F, 4 minutes
later.
A. What is the value of k in four decimal places?
Answer:
B. Find the thermometer reading 7 minutes after the thermometer was brought outside.
Answer:
°F
C. Find the time taken for the reading to drop from 75° F to within half degree of the air temperature.
Answer:
min
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