At 9:00AM, a thermometer reading 70°F is taken outdoors where the temperature is 15°F. At 9:05AM, the thermometer reading is 45°F. At 9:10AM, the thermometer is taken back indoors where the temperature is fixed at 70°F. Find the temperature at 9:20AM. A) 34.8°F B) 54.1°F C) 58.5°F D) 68.7°F

At 9:00AM, a thermometer reading 70°F is taken outdoors where the temperature is 15°F. At 9:05AM, the thermometer reading is 45°F. At 9:10AM, the thermometer is taken back indoors where the temperature is fixed at 70°F. Find the temperature at 9:20AM. A) 34.8°F B) 54.1°F C) 58.5°F D) 68.7°F

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

Chapter11: Introduction To Trigonometry

Section11.2: The Cosine Ratio And Applications

Problem 42E: For Exercise 42 and 43, use the drawing and the formula from Exercise 41. Find the area of an...

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Question

Answer the following using Newton’s Law of Cooling

At 9:00AM, a thermometer reading 70°F is taken outdoors
where the temperature is 15°F. At 9:05AM, the thermometer
reading is 45°F. At 9:10AM, the thermometer is taken back
indoors where the temperature is fixed at 70°F. Find the
temperature at 9:20AM.
A) 34.8°F
B) 54.1°F
C) 58.5°F
D) 68.7°F

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