Differential Equations with Boundary-Value Problems (MindTap Course List)
9th Edition
ISBN: 9781305965799
Author: Dennis G. Zill
Publisher: Cengage Learning
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Textbook Question
Chapter 4.6, Problem 8E
In Problems 1–18 solve each differential equation by variation of parameters.
8.
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Chapter 4 Solutions
Differential Equations with Boundary-Value Problems (MindTap Course List)
Ch. 4.1 - In Problems 14 the given family of functions is...Ch. 4.1 - In Problems 14 the given family of functions is...Ch. 4.1 - In Problems 14 the given family of functions is...Ch. 4.1 - In Problems 14 the given family of functions is...Ch. 4.1 - Given that y=c1+c2x2 is a two-parameter family of...Ch. 4.1 - Find two members of the family of solutions in...Ch. 4.1 - Prob. 7ECh. 4.1 - Use the general solution of x + 2x = 0 given in...Ch. 4.1 - In Problems 9 and 10 find an interval centered...Ch. 4.1 - In Problems 9 and 10 find an interval centered...
Ch. 4.1 - (a) Use the family in Problem 1 to find a solution...Ch. 4.1 - Prob. 12ECh. 4.1 - In Problems 13 and 14 the given two-parameter...Ch. 4.1 - In Problems 13 and 14 the given two-parameter...Ch. 4.1 - In Problems 1522 determine whether the given set...Ch. 4.1 - In Problems 1522 determine whether the given set...Ch. 4.1 - In Problems 1522 determine whether the given set...Ch. 4.1 - In Problems 1522 determine whether the given set...Ch. 4.1 - In Problems 1522 determine whether the given set...Ch. 4.1 - Prob. 20ECh. 4.1 - In Problems 1522 determine whether the given set...Ch. 4.1 - In Problems 1522 determine whether the given set...Ch. 4.1 - In Problems 2330 verify that the given functions...Ch. 4.1 - Prob. 24ECh. 4.1 - In Problems 2330 verify that the given functions...Ch. 4.1 - In Problems 2330 verify that the given functions...Ch. 4.1 - In Problems 2330 verify that the given functions...Ch. 4.1 - Prob. 28ECh. 4.1 - Prob. 29ECh. 4.1 - In Problems 2330 verify that the given functions...Ch. 4.1 - In Problems 31–34 verify that the given...Ch. 4.1 - Prob. 32ECh. 4.1 - In Problems 3134 verify that the given...Ch. 4.1 - In Problems 31–34 verify that the given...Ch. 4.1 - (a) Verify that and are, respectively, particular...Ch. 4.1 - Prob. 36ECh. 4.1 - Prob. 37ECh. 4.1 - Suppose that y1 = ex and y2 = ex are two solutions...Ch. 4.1 - (a) Verify that y1 = x3 and y2 = |x|3 are linearly...Ch. 4.1 - Is the set of functions f1(x) = ex+2, f2(x) = ex3...Ch. 4.1 - Prob. 41ECh. 4.1 - Prob. 42ECh. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - Prob. 6ECh. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 116 the indicated function y1(x) is a...Ch. 4.2 - In Problems 1720 the indicated function y1(x) is a...Ch. 4.2 - In Problems 1720 the indicated function y1(x) is a...Ch. 4.2 - In Problems 1720 the indicated function y1(x) is a...Ch. 4.2 - In Problems 1720 the indicated function y1(x) is a...Ch. 4.2 - Prob. 21ECh. 4.2 - In Problems 21 and 22 the indicated function y1(x)...Ch. 4.2 - Prob. 23ECh. 4.2 - Prob. 24ECh. 4.3 - In Problems 114 find the general solution of the...Ch. 4.3 - Prob. 2ECh. 4.3 - Prob. 3ECh. 4.3 - Prob. 4ECh. 4.3 - Prob. 5ECh. 4.3 - Prob. 6ECh. 4.3 - In Problems 114 find the general solution of the...Ch. 4.3 - Prob. 8ECh. 4.3 - In Problems 114 find the general solution of the...Ch. 4.3 - Prob. 10ECh. 4.3 - Prob. 11ECh. 4.3 - Prob. 12ECh. 4.3 - Prob. 13ECh. 4.3 - In Problems 114 find the general solution of the...Ch. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - Prob. 20ECh. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - Prob. 22ECh. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - In Problems 1528 find the general solution of the...Ch. 4.3 - Prob. 28ECh. 4.3 - In Problems 2936 solve the given initial-value...Ch. 4.3 - In Problems 2936 solve the given initial-value...Ch. 4.3 - In Problems 2936 solve the given initial-value...Ch. 4.3 - Prob. 32ECh. 4.3 - Prob. 33ECh. 4.3 - Prob. 34ECh. 4.3 - Prob. 35ECh. 4.3 - Prob. 36ECh. 4.3 - Prob. 37ECh. 4.3 - Prob. 38ECh. 4.3 - Prob. 39ECh. 4.3 - In Problems 3740 solve the given boundary-value...Ch. 4.3 - In Problems 41 and 42 solve the given problem...Ch. 4.3 - In Problems 41 and 42 solve the given problem...Ch. 4.3 - Prob. 43ECh. 4.3 - Prob. 44ECh. 4.3 - Prob. 45ECh. 4.3 - Prob. 46ECh. 4.3 - Prob. 47ECh. 4.3 - Prob. 48ECh. 4.3 - In Problems 4958 find a homogeneous linear...Ch. 4.3 - Prob. 50ECh. 4.3 - Prob. 51ECh. 4.3 - Prob. 52ECh. 4.3 - Prob. 53ECh. 4.3 - Prob. 54ECh. 4.3 - Prob. 55ECh. 4.3 - Prob. 56ECh. 4.3 - Prob. 57ECh. 4.3 - Prob. 58ECh. 4.3 - Two roots of a cubic auxiliary equation with real...Ch. 4.3 - Find the general solution of 2 + 7y + 4y 4y 0 if...Ch. 4.3 - Find the general solution of y + 6y + y 34y = 0...Ch. 4.3 - To solve y(4) + y = 0, we must find the roots of...Ch. 4.3 - Prob. 63ECh. 4.3 - Prob. 64ECh. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - Prob. 9ECh. 4.4 - In Problems 1–26 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - Prob. 12ECh. 4.4 - In Problems 1–26 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - Prob. 20ECh. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - In Problems 126 solve the given differential...Ch. 4.4 - Prob. 27ECh. 4.4 - Prob. 28ECh. 4.4 - Prob. 29ECh. 4.4 - In Problems 2736 solve the given initial-value...Ch. 4.4 - In Problems 2736 solve the given initial-value...Ch. 4.4 - Prob. 32ECh. 4.4 - In Problems 2736 solve the given initial-value...Ch. 4.4 - In Problems 2736 solve the given initial-value...Ch. 4.4 - In Problems 2736 solve the given initial-value...Ch. 4.4 - Prob. 36ECh. 4.4 - Prob. 37ECh. 4.4 - In Problems 3740 solve the given boundary-value...Ch. 4.4 - Prob. 39ECh. 4.4 - In Problems 3740 solve the given boundary-value...Ch. 4.4 - In Problems 41 and 42 solve the given...Ch. 4.4 - In Problems 41 and 42 solve the given...Ch. 4.4 - Consider the differential equation ay + by + cy =...Ch. 4.4 - Prob. 44ECh. 4.4 - In Problems 4548 without solving, match a solution...Ch. 4.4 - In Problems 4548 without solving, match a solution...Ch. 4.4 - In Problems 4548 without solving, match a solution...Ch. 4.4 - Prob. 48ECh. 4.5 - In Problems 110 write the given differential...Ch. 4.5 - In Problems 110 write the given differential...Ch. 4.5 - In Problems 110 write the given differential...Ch. 4.5 - Prob. 4ECh. 4.5 - In Problems 110 write the given differential...Ch. 4.5 - Prob. 6ECh. 4.5 - Prob. 7ECh. 4.5 - Prob. 8ECh. 4.5 - In Problems 110 write the given differential...Ch. 4.5 - In Problems 110 write the given differential...Ch. 4.5 - In Problems 1114 verify that the given...Ch. 4.5 - In Problems 1114 verify that the given...Ch. 4.5 - In Problems 11-14 verify that the given...Ch. 4.5 - In Problems 11-14 verify that the given...Ch. 4.5 - In Problems 15-26 find a linear differential...Ch. 4.5 - Prob. 16ECh. 4.5 - Prob. 17ECh. 4.5 - Prob. 18ECh. 4.5 - Prob. 19ECh. 4.5 - Prob. 20ECh. 4.5 - In Problems 15-26 find a linear differential...Ch. 4.5 - In Problems 1526 find a linear differential...Ch. 4.5 - Prob. 23ECh. 4.5 - In Problems 1526 find a linear differential...Ch. 4.5 - In Problems 1526 find a linear differential...Ch. 4.5 - In Problems 1526 find a linear differential...Ch. 4.5 - In Problems 27-34 find linearly independent...Ch. 4.5 - In Problems 27-34 find linearly independent...Ch. 4.5 - In Problems 27-34 find linearly independent...Ch. 4.5 - Prob. 30ECh. 4.5 - Prob. 31ECh. 4.5 - Prob. 32ECh. 4.5 - In Problems 2734 find linearly independent...Ch. 4.5 - Prob. 34ECh. 4.5 - In Problems 35-64 solve the given differential...Ch. 4.5 - In Problems 3564 solve the given differential...Ch. 4.5 - In Problems 3564 solve the given differential...Ch. 4.5 - In Problems 3564 solve the given differential...Ch. 4.5 - Prob. 39ECh. 4.5 - Prob. 40ECh. 4.5 - Prob. 41ECh. 4.5 - Prob. 42ECh. 4.5 - Prob. 43ECh. 4.5 - Prob. 44ECh. 4.5 - Prob. 45ECh. 4.5 - Prob. 46ECh. 4.5 - Prob. 47ECh. 4.5 - In Problems 35-64 solve the given differential...Ch. 4.5 - Prob. 49ECh. 4.5 - Prob. 50ECh. 4.5 - In Problems 3564 solve the given differential...Ch. 4.5 - Prob. 52ECh. 4.5 - Prob. 53ECh. 4.5 - In Problems 3564 solve the given differential...Ch. 4.5 - In Problems 3564 solve the given differential...Ch. 4.5 - In Problems 3564 solve the given differential...Ch. 4.5 - In Problems 3564 solve the given differential...Ch. 4.5 - In Problems 3564 solve the given differential...Ch. 4.5 - In Problems 3564 solve the given differential...Ch. 4.5 - Prob. 60ECh. 4.5 - Prob. 61ECh. 4.5 - Prob. 62ECh. 4.5 - Prob. 63ECh. 4.5 - Prob. 64ECh. 4.5 - Prob. 65ECh. 4.5 - Prob. 66ECh. 4.5 - Prob. 67ECh. 4.5 - Prob. 68ECh. 4.5 - Prob. 69ECh. 4.5 - In Problems 6572 solve the given initial-value...Ch. 4.5 - Prob. 71ECh. 4.5 - Prob. 72ECh. 4.5 - Prob. 73ECh. 4.6 - In Problems 118 solve each differential equation...Ch. 4.6 - In Problems 118 solve each differential equation...Ch. 4.6 - In Problems 118 solve each differential equation...Ch. 4.6 - Prob. 4ECh. 4.6 - In Problems 1-18 solve each differential equation...Ch. 4.6 - Prob. 6ECh. 4.6 - In Problems 1-18 solve each differential equation...Ch. 4.6 - In Problems 118 solve each differential equation...Ch. 4.6 - In Problems 118 solve each differential equation...Ch. 4.6 - In Problems 118 solve each differential equation...Ch. 4.6 - Prob. 11ECh. 4.6 - Prob. 12ECh. 4.6 - In Problems 1-18 solve each differential equation...Ch. 4.6 - In Problems 1-18 solve each differential equation...Ch. 4.6 - In Problems 1-18 solve each differential equation...Ch. 4.6 - Prob. 16ECh. 4.6 - In Problems 1-18 solve each differential equation...Ch. 4.6 - Prob. 18ECh. 4.6 - In Problems 19-22 solve each differential equation...Ch. 4.6 - In Problems 19-22 solve each differential equation...Ch. 4.6 - In Problems 19-22 solve each differential equation...Ch. 4.6 - In Problems 19-22 solve each differential equation...Ch. 4.6 - Prob. 23ECh. 4.6 - In Problems 23-26 proceed as in Example 3 and...Ch. 4.6 - In Problems 23-26 proceed as in Example 3 and...Ch. 4.6 - In Problems 23-26 proceed as in Example 3 and...Ch. 4.6 - In Problems 27 and 28 the indicated functions are...Ch. 4.6 - In Problems 27 and 28 the indicated functions are...Ch. 4.6 - Prob. 29ECh. 4.6 - In Problems 2932 solve the given third-order...Ch. 4.6 - Prob. 31ECh. 4.6 - Prob. 32ECh. 4.6 - In Problems 33 and 34 discuss how the methods of...Ch. 4.6 - Prob. 34ECh. 4.6 - Prob. 35ECh. 4.6 - Find the general solution of x4y+x3y4x2y=1 given...Ch. 4.7 - In Problems 118 solve the given differential...Ch. 4.7 - In Problems 118 solve the given differential...Ch. 4.7 - Prob. 3ECh. 4.7 - Prob. 4ECh. 4.7 - In Problems 118 solve the given differential...Ch. 4.7 - Prob. 6ECh. 4.7 - In Problems 118 solve the given differential...Ch. 4.7 - Prob. 8ECh. 4.7 - In Problems 118 solve the given differential...Ch. 4.7 - Prob. 10ECh. 4.7 - Prob. 11ECh. 4.7 - Prob. 12ECh. 4.7 - In Problems 118 solve the given differential...Ch. 4.7 - In Problems 118 solve the given differential...Ch. 4.7 - Prob. 15ECh. 4.7 - Prob. 16ECh. 4.7 - In Problems 118 solve the given differential...Ch. 4.7 - Prob. 18ECh. 4.7 - In Problems 19-24 solve the given partial equation...Ch. 4.7 - Prob. 20ECh. 4.7 - Prob. 21ECh. 4.7 - Prob. 22ECh. 4.7 - In Problems 19-24 solve the given partial equation...Ch. 4.7 - In Problems 1924 solve the given differential...Ch. 4.7 - In Problems 2530 solve the given initial-value...Ch. 4.7 - Prob. 26ECh. 4.7 - Prob. 27ECh. 4.7 - In Problems 25-30 solve the given initial-value...Ch. 4.7 - Prob. 29ECh. 4.7 - In Problems 25-30 solve the given initial-value...Ch. 4.7 - In Problems 3136 use the substitution x = et to...Ch. 4.7 - Prob. 32ECh. 4.7 - In Problems 3136 use the substitution x = et to...Ch. 4.7 - In Problems 3136 use the substitution x = et to...Ch. 4.7 - Prob. 35ECh. 4.7 - In Problems 3136 use the substitution x = et to...Ch. 4.7 - Prob. 37ECh. 4.7 - In Problems 37 and 38 use the substitution t = x...Ch. 4.7 - Prob. 39ECh. 4.7 - Prob. 40ECh. 4.7 - Prob. 41ECh. 4.7 - Prob. 42ECh. 4.7 - Prob. 43ECh. 4.7 - Prob. 44ECh. 4.7 - Prob. 45ECh. 4.7 - Prob. 46ECh. 4.7 - Bending of a Circular Plate In the analysis of the...Ch. 4.7 - Prob. 48ECh. 4.8 - In Problems 16 proceed as in Example 1 to find a...Ch. 4.8 - In Problems 16 proceed as in Example 1 to find a...Ch. 4.8 - Prob. 3ECh. 4.8 - Prob. 4ECh. 4.8 - Prob. 5ECh. 4.8 - Prob. 6ECh. 4.8 - Prob. 7ECh. 4.8 - In Problems 712 proceed as in Example 2 to find...Ch. 4.8 - Prob. 9ECh. 4.8 - Prob. 10ECh. 4.8 - Prob. 11ECh. 4.8 - Prob. 12ECh. 4.8 - Prob. 13ECh. 4.8 - Prob. 14ECh. 4.8 - Prob. 15ECh. 4.8 - Prob. 16ECh. 4.8 - Prob. 17ECh. 4.8 - In Problems 13-18 proceed as in Example 3 to find...Ch. 4.8 - Prob. 19ECh. 4.8 - Prob. 20ECh. 4.8 - Prob. 21ECh. 4.8 - Prob. 22ECh. 4.8 - In Problems 19-30 proceed as in Example 5 to find...Ch. 4.8 - Prob. 24ECh. 4.8 - Prob. 25ECh. 4.8 - Prob. 26ECh. 4.8 - Prob. 27ECh. 4.8 - Prob. 28ECh. 4.8 - Prob. 29ECh. 4.8 - Prob. 30ECh. 4.8 - Prob. 31ECh. 4.8 - In Problems 31-34 proceed as in Example 6 to find...Ch. 4.8 - Prob. 33ECh. 4.8 - Prob. 34ECh. 4.8 - Prob. 35ECh. 4.8 - Prob. 36ECh. 4.8 - Prob. 37ECh. 4.8 - Prob. 38ECh. 4.8 - Prob. 39ECh. 4.8 - Prob. 40ECh. 4.8 - Prob. 41ECh. 4.8 - In Problems 39-44 proceed as in Examples 7 and 8...Ch. 4.8 - Prob. 43ECh. 4.8 - Prob. 44ECh. 4.9 - In Problems 120 solve the given system of...Ch. 4.9 - Prob. 2ECh. 4.9 - Prob. 3ECh. 4.9 - Prob. 4ECh. 4.9 - Prob. 5ECh. 4.9 - Prob. 6ECh. 4.9 - Prob. 7ECh. 4.9 - In Problems 120 solve the given system of...Ch. 4.9 - Prob. 9ECh. 4.9 - Prob. 10ECh. 4.9 - Prob. 11ECh. 4.9 - Prob. 12ECh. 4.9 - Prob. 13ECh. 4.9 - Prob. 14ECh. 4.9 - Prob. 15ECh. 4.9 - Prob. 16ECh. 4.9 - Prob. 17ECh. 4.9 - In Problems 120 solve the given system of...Ch. 4.9 - Prob. 19ECh. 4.9 - Prob. 20ECh. 4.9 - Prob. 21ECh. 4.9 - Prob. 22ECh. 4.9 - Projectile Motion A projectile shot from a gun has...Ch. 4.9 - Prob. 24ECh. 4.9 - Prob. 25ECh. 4.10 - Prob. 1ECh. 4.10 - Prob. 2ECh. 4.10 - In Problems 3-6 the dependent variable y is...Ch. 4.10 - Prob. 4ECh. 4.10 - In Problems 3-6 the dependent variable y is...Ch. 4.10 - Prob. 6ECh. 4.10 - In Problems 710 the independent variable x is...Ch. 4.10 - Prob. 8ECh. 4.10 - Prob. 9ECh. 4.10 - Prob. 10ECh. 4.10 - Prob. 11ECh. 4.10 - In Problems 11 and 12 solve the given...Ch. 4.10 - Prob. 13ECh. 4.10 - Prob. 14ECh. 4.10 - Prob. 15ECh. 4.10 - In Problems 15 and 16 show that the substitution u...Ch. 4.10 - In Problems 17–20 proceed as in Example 3 and...Ch. 4.10 - Prob. 18ECh. 4.10 - Prob. 19ECh. 4.10 - Prob. 20ECh. 4.10 - In calculus the curvature of a curve that is...Ch. 4.10 - Prob. 22ECh. 4.10 - Discuss how the method of reduction of order...Ch. 4.10 - Prob. 24ECh. 4.10 - Prob. 25ECh. 4 - Answer Problems 110 without referring back to the...Ch. 4 - Answer Problems 110 without referring back to the...Ch. 4 - Answer Problems 110 without referring back to the...Ch. 4 - Prob. 4RECh. 4 - Prob. 5RECh. 4 - Prob. 6RECh. 4 - Prob. 7RECh. 4 - Prob. 8RECh. 4 - Prob. 9RECh. 4 - If y1 = ex and y2 = ex are solutions of...Ch. 4 - Prob. 11RECh. 4 - Without the aid of the Wronskian, determine...Ch. 4 - Suppose m1 = 3, m2 = 5, and m3 = 1 are roots of...Ch. 4 - Prob. 14RECh. 4 - In Problems 15 and 16 find a homogeneous...Ch. 4 - Prob. 16RECh. 4 - In Problems 1732 use the procedures developed in...Ch. 4 - Prob. 18RECh. 4 - Prob. 19RECh. 4 - Prob. 20RECh. 4 - In Problems 1732 use the procedures developed in...Ch. 4 - Prob. 22RECh. 4 - Prob. 23RECh. 4 - Prob. 24RECh. 4 - Prob. 25RECh. 4 - Prob. 26RECh. 4 - Prob. 27RECh. 4 - Prob. 28RECh. 4 - Prob. 29RECh. 4 - Prob. 30RECh. 4 - Prob. 31RECh. 4 - Prob. 32RECh. 4 - In Problems 33 and 34 write down the form of the...Ch. 4 - Prob. 34RECh. 4 - Prob. 35RECh. 4 - Prob. 36RECh. 4 - Prob. 37RECh. 4 - Prob. 38RECh. 4 - Prob. 39RECh. 4 - Prob. 40RECh. 4 - Prob. 41RECh. 4 - Prob. 42RECh. 4 - Prob. 43RECh. 4 - Prob. 44RECh. 4 - Prob. 46RECh. 4 - Prob. 47RECh. 4 - In Problems 47-50 use systematic elimination to...Ch. 4 - Prob. 49RECh. 4 - Prob. 50RE
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- Kyoko has $10,000 that she wants to invest. Her bank has several accounts to choose from. Her goal is to have $15,000 by the time she finishes graduate school in 7 years. To the nearest hundredth of a percent, what should her minimum annual interest rate be in order to reach her goal assuming they compound daily? (Hint: solve the compound interest formula for the intrerest rate. Also, assume there are 365 days in a year) %arrow_forwardTest the claim that a student's pulse rate is different when taking a quiz than attending a regular class. The mean pulse rate difference is 2.7 with 10 students. Use a significance level of 0.005. Pulse rate difference(Quiz - Lecture) 2 -1 5 -8 1 20 15 -4 9 -12arrow_forwardThere are three options for investing $1150. The first earns 10% compounded annually, the second earns 10% compounded quarterly, and the third earns 10% compounded continuously. Find equations that model each investment growth and use a graphing utility to graph each model in the same viewing window over a 20-year period. Use the graph to determine which investment yields the highest return after 20 years. What are the differences in earnings among the three investment? STEP 1: The formula for compound interest is A = nt = P(1 + − − ) n², where n is the number of compoundings per year, t is the number of years, r is the interest rate, P is the principal, and A is the amount (balance) after t years. For continuous compounding, the formula reduces to A = Pert Find r and n for each model, and use these values to write A in terms of t for each case. Annual Model r=0.10 A = Y(t) = 1150 (1.10)* n = 1 Quarterly Model r = 0.10 n = 4 A = Q(t) = 1150(1.025) 4t Continuous Model r=0.10 A = C(t) =…arrow_forward
- The following ordered data list shows the data speeds for cell phones used by a telephone company at an airport: A. Calculate the Measures of Central Tendency from the ungrouped data list. B. Group the data in an appropriate frequency table. C. Calculate the Measures of Central Tendency using the table in point B. D. Are there differences in the measurements obtained in A and C? Why (give at least one justified reason)? I leave the answers to A and B to resolve the remaining two. 0.8 1.4 1.8 1.9 3.2 3.6 4.5 4.5 4.6 6.2 6.5 7.7 7.9 9.9 10.2 10.3 10.9 11.1 11.1 11.6 11.8 12.0 13.1 13.5 13.7 14.1 14.2 14.7 15.0 15.1 15.5 15.8 16.0 17.5 18.2 20.2 21.1 21.5 22.2 22.4 23.1 24.5 25.7 28.5 34.6 38.5 43.0 55.6 71.3 77.8 A. Measures of Central Tendency We are to calculate: Mean, Median, Mode The data (already ordered) is: 0.8, 1.4, 1.8, 1.9, 3.2, 3.6, 4.5, 4.5, 4.6, 6.2, 6.5, 7.7, 7.9, 9.9, 10.2, 10.3, 10.9, 11.1, 11.1, 11.6, 11.8, 12.0, 13.1, 13.5, 13.7, 14.1, 14.2, 14.7, 15.0, 15.1, 15.5,…arrow_forwardA tournament is a complete directed graph, for each pair of vertices x, y either (x, y) is an arc or (y, x) is an arc. One can think of this as a round robin tournament, where the vertices represent teams, each pair plays exactly once, with the direction of the arc indicating which team wins. (a) Prove that every tournament has a direct Hamiltonian path. That is a labeling of the teams V1, V2,..., Un so that vi beats Vi+1. That is a labeling so that team 1 beats team 2, team 2 beats team 3, etc. (b) A digraph is strongly connected if there is a directed path from any vertex to any other vertex. Equivalently, there is no partition of the teams into groups A, B so that every team in A beats every team in B. Prove that every strongly connected tournament has a directed Hamiltonian cycle. Use this to show that for any team there is an ordering as in part (a) for which the given team is first. (c) A king in a tournament is a vertex such that there is a direct path of length at most 2 to any…arrow_forwardUse a graphing utility to find the point of intersection, if any, of the graphs of the functions. Round your result to three decimal places. (Enter NONE in any unused answer blanks.) y = 100e0.01x (x, y) = y = 11,250 ×arrow_forward
- how to construct the following same table?arrow_forwardThe following is known. The complete graph K2t on an even number of vertices has a 1- factorization (equivalently, its edges can be colored with 2t - 1 colors so that the edges incident to each vertex are distinct). This implies that the complete graph K2t+1 on an odd number of vertices has a factorization into copies of tK2 + K₁ (a matching plus an isolated vertex). A group of 10 people wants to set up a 45 week tennis schedule playing doubles, each week, the players will form 5 pairs. One of the pairs will not play, the other 4 pairs will each play one doubles match, two of the pairs playing each other and the other two pairs playing each other. Set up a schedule with the following constraints: Each pair of players is a doubles team exactly 4 times; during those 4 matches they see each other player exactly once; no two doubles teams play each other more than once. (a) Find a schedule. Hint - think about breaking the 45 weeks into 9 blocks of 5 weeks. Use factorizations of complete…arrow_forward. The two person game of slither is played on a graph. Players 1 and 2 take turns, building a path in the graph. To start, Player 1 picks a vertex. Player 2 then picks an edge incident to the vertex. Then, starting with Player 1, players alternate turns, picking a vertex not already selected that is adjacent to one of the ends of the path created so far. The first player who cannot select a vertex loses. (This happens when all neighbors of the end vertices of the path are on the path.) Prove that Player 2 has a winning strategy if the graph has a perfect matching and Player 1 has a winning strategy if the graph does not have a perfect matching. In each case describe a strategy for the winning player that guarantees that they will always be able to select a vertex. The strategy will be based on using a maximum matching to decide the next choice, and will, for one of the cases involve using the fact that maximality means no augmenting paths. Warning, the game slither is often described…arrow_forward
- Let D be a directed graph, with loops allowed, for which the indegree at each vertex is at most k and the outdegree at each vertex is at most k. Prove that the arcs of D can be colored so that the arcs entering each vertex must have distinct colors and the arcs leaving each vertex have distinct colors. An arc entering a vertex may have the same color as an arc leaving it. It is probably easiest to make use of a known result about edge coloring. Think about splitting each vertex into an ‘in’ and ‘out’ part and consider what type of graph you get.arrow_forward3:56 wust.instructure.com Page 0 Chapter 5 Test Form A of 2 - ZOOM + | Find any real numbers for which each expression is undefined. 2x 4 1. x Name: Date: 1. 3.x-5 2. 2. x²+x-12 4x-24 3. Evaluate when x=-3. 3. x Simplify each rational expression. x²-3x 4. 2x-6 5. x²+3x-18 x²-9 6. Write an equivalent rational expression with the given denominator. 2x-3 x²+2x+1(x+1)(x+2) Perform the indicated operation and simplify if possible. x²-16 x-3 7. 3x-9 x²+2x-8 x²+9x+20 5x+25 8. 4.x 2x² 9. x-5 x-5 3 5 10. 4x-3 8x-6 2 3 11. x-4 x+4 x 12. x-2x-8 x²-4 ← -> Copyright ©2020 Pearson Education, Inc. + 5 4. 5. 6. 7. 8. 9. 10. 11. 12. T-97arrow_forwardplease work out more details give the solution.arrow_forward
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