The given graph shows the temperature Tin °F at a city between 6 A.M. and 6 PM. 80 70- 60- 50- 40+ 0 3 6 9AM 12 NOON Time(hrs) Answer parts (a) through (c) 6AM 9 3 PM 12 Q 6 PM i) Which of the following is the rate of temperature change at 7 A.M? O -11.9 °F/hr 11.9 °F/hr ii) Which of the following is the rate of temperature change at 9 A.M? O -2.9 °F/hr O - 12.9 °F/hr ii) Which of the following is the rate of temperature change at 2 P.M? -3.3 °F/hr - 13.3 °F/hr O O iv) Which of the following is the rate of temperature change at 4 PM? O 12.9 °F/hr O O2.9 °F/hr O O 1.9 °F/hr -1.9 °F/hr O O 3.3 °F/hr 13.3 °F/hr O 0.9 °F/hr O -0.9 °F/hr (b) At what time does the temperature increase most rapidly? Decrease most rapidly? What is the rate for each of those times? OA. The temperature increases most rapidly at 6 P.M. and the rate is 19.1 °F/hr, and the temperature decreases most rapidly at 12 Noon and the rate is 24.1 °F/hr. 12.1 °F/hr - 12.1 °F/hr OB. The temperature increases most rapidly at 12 Noon and the rate is 19.1 °F/hr, and the temperature decreases most rapidly at 6 P.M.and the rate is -24.1°F/hr. OC. The temperature increases most rapidly at 12 Noon and the rate is 4.1 °F/hr, and the temperature decreases most rapidly at 6 P.M. and the rate is -9.1 °F/hr.
The given graph shows the temperature Tin °F at a city between 6 A.M. and 6 PM. 80 70- 60- 50- 40+ 0 3 6 9AM 12 NOON Time(hrs) Answer parts (a) through (c) 6AM 9 3 PM 12 Q 6 PM i) Which of the following is the rate of temperature change at 7 A.M? O -11.9 °F/hr 11.9 °F/hr ii) Which of the following is the rate of temperature change at 9 A.M? O -2.9 °F/hr O - 12.9 °F/hr ii) Which of the following is the rate of temperature change at 2 P.M? -3.3 °F/hr - 13.3 °F/hr O O iv) Which of the following is the rate of temperature change at 4 PM? O 12.9 °F/hr O O2.9 °F/hr O O 1.9 °F/hr -1.9 °F/hr O O 3.3 °F/hr 13.3 °F/hr O 0.9 °F/hr O -0.9 °F/hr (b) At what time does the temperature increase most rapidly? Decrease most rapidly? What is the rate for each of those times? OA. The temperature increases most rapidly at 6 P.M. and the rate is 19.1 °F/hr, and the temperature decreases most rapidly at 12 Noon and the rate is 24.1 °F/hr. 12.1 °F/hr - 12.1 °F/hr OB. The temperature increases most rapidly at 12 Noon and the rate is 19.1 °F/hr, and the temperature decreases most rapidly at 6 P.M.and the rate is -24.1°F/hr. OC. The temperature increases most rapidly at 12 Noon and the rate is 4.1 °F/hr, and the temperature decreases most rapidly at 6 P.M. and the rate is -9.1 °F/hr.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
Related questions
Question
Transcribed Image Text:The given graph shows the temperature T in
°F at a city between 6 A.M. and 6 P.M.
Temperature (degree Fahrenheit)
80+
70-
60-
50-
404
0
3
6
9AM 12 NOON
Time(hrs)
Answer parts (a) through (c).
6 A.M
9
3 PM
12
6 PM.
i) Which of the following is the rate of temperature change at 7 A.M?
O-11.9 °F/hr
11.9 °F/hr
ii) Which of the following is the rate of temperature change at 9 A.M?
-2.9 °F/hr
- 12.9 °F/hr
iii) Which of the following is the rate of temperature change at 2 P.M?
- 3.3 °F/hr
- 13.3 °F/hr
iv) Which of the following is the rate of temperature change at 4 P.M?
1.9 °F/hr
- 1.9 °F/hr
O
12.9 °F/hr
2.9 °F/hr
3.3 °F/hr
13.3 °F/hr
0.9 °F/hr
12.1 °F/hr
-0.9 °F/hr
- 12.1 °F/hr
(b) At what time does the temperature increase most rapidly? Decrease most rapidly? What is the rate for each of those times?
A. The temperature increases most rapidly at 6 P.M. and the rate is 19.1 °F/hr, and the temperature decreases most rapidly at 12 Noon and the
rate is 24.1 °F/hr.
B. The temperature increases most rapidly at 12 Noon and the rate is 19.1 °F/hr, and the temperature decreases most rapidly at 6 P.M. and the rate
is - 24.1 °F/hr.
OC. The temperature increases most rapidly at 12 Noon and the rate is 4.1 °F/hr, and the temperature decreases most rapidly at 6 P.M.and the rate
is -9.1 °F/hr.
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