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38) Assume that f(x) is a solution to the differential equation y' = 2x + y with f(0) = –1. Then f(1) =? а) е — 2 b) ! - 2 с) е — 4 d) e- – 2 e) None of the above

38) Assume that f(x) is a solution to the differential equation y' = 2x + y with f(0) = –1. Then f(1) =? а) е — 2 b) ! - 2 с) е — 4 d) e- – 2 e) None of the above

Calculus: Early Transcendentals
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Solve both 38 and 39 please

38) Assume that f(x) is a solution to the differential equation y' = 2x + y with f(0) = -1. Then f(1) =? а) е — 2 | b) ! – 2 - с) е — 4 d) e- – 2 e) None of the above 39) An object at an unknown temperature is placed in a room which is held at a constant temperature of 5° C. If after 10 minutes the temperature of the object is -15° C and after 20 minutes the temperature of the object is –10° C, the unknown initial temperature of the object is approximately: а) —18° С b) –20° C с) — 22° С d) —26° С е) —32° С |
Transcribed Image Text:38) Assume that f(x) is a solution to the differential equation y' = 2x + y with f(0) = -1. Then f(1) =? а) е — 2 | b) ! – 2 - с) е — 4 d) e- – 2 e) None of the above 39) An object at an unknown temperature is placed in a room which is held at a constant temperature of 5° C. If after 10 minutes the temperature of the object is -15° C and after 20 minutes the temperature of the object is –10° C, the unknown initial temperature of the object is approximately: а) —18° С b) –20° C с) — 22° С d) —26° С е) —32° С |
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