The velocity of a plane is modeled by v(t) = -1+ cos ) + 3 sin ), measured in miles per minute, for 0sts 40. The plane's initial position is x(0) = 20 miles from the D.C. airport. a) At minute 23, is the plane speeding up or slowing down? Justify your answer.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.2: Graphs Of Equations
Problem 45E
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The velocity of a plane is modeled by v(t) = -1+ cos
minute, for 0 Sts 40. The plane's initial position is x(0) = 20 miles from the D.C. airport.
a) At minute 23, is the plane speeding up or slowing down? Justify your answer.
1.
+3 sin , measured in miles per
Transcribed Image Text:The velocity of a plane is modeled by v(t) = -1+ cos minute, for 0 Sts 40. The plane's initial position is x(0) = 20 miles from the D.C. airport. a) At minute 23, is the plane speeding up or slowing down? Justify your answer. 1. +3 sin , measured in miles per
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