Concept explainers
To find multiple choice. And the models is dy/dt directly proportional to y.
Answer to Problem 51E
Only II and III are directly proportional. Option (D).
Explanation of Solution
Given information:
(I).
(II).
(III).
- (A) I only
(B) II only
(C) I and II only
(D) II and III only
(E) I, II, and III.
Calculation: The required solution is obtained as,
Check each equation by finding the derivatives to see if they can be written in the form dy/dt = Ky.
I.
II.
III.
Hence, only II and III are directly proportional. Option (D).
Chapter 7 Solutions
Calculus: Graphical, Numerical, Algebraic: Solutions Manual
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