Answer the question in the second picture and use the first pic as reference. Solve the following using linear models of differential equations. Choose from the choices below. (QUESTION: In previous question, how long will it take for the bar to reach a temperature of 75F?)

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter6: Vector Spaces
Section6.7: Applications
Problem 16EQ
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2. Answer the question in the second picture and use the first pic as reference. Solve the following using linear models of differential equations. Choose from the choices below.

(QUESTION: In previous question, how long will it take for the bar to reach a temperature of 75F?)

A metal bar at a temperature of 200F is placed in a room at a constant
temperature of 20F. (a) If after 15 min the temperature of the bar is 50F,
find the temperature of the bar at any time t.
O T= 180 e^-0.1194t + 20
O T= 180 e^-0.1194t - 20
= 180 e^0.1194t + 20
None of the above
Transcribed Image Text:A metal bar at a temperature of 200F is placed in a room at a constant temperature of 20F. (a) If after 15 min the temperature of the bar is 50F, find the temperature of the bar at any time t. O T= 180 e^-0.1194t + 20 O T= 180 e^-0.1194t - 20 = 180 e^0.1194t + 20 None of the above
In previous question, how long will it take for the bar to reach a
temperature of 75F.
9.93 min
9.93 secs
5.4 secs
O 5.4 min
Transcribed Image Text:In previous question, how long will it take for the bar to reach a temperature of 75F. 9.93 min 9.93 secs 5.4 secs O 5.4 min
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