
Mathematical Methods in the Physical Sciences
3rd Edition
ISBN: 9780471198260
Author: Mary L. Boas
Publisher: Wiley, John & Sons, Incorporated
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Textbook Question
Chapter 2.17, Problem 17MP
Verify the formulas in Problems 17 to 24.
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There 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
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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
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A = Y(t) = 1150 (1.10)*
n = 1
Quarterly Model
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Continuous Model
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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
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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,…
A tournament is a complete directed graph, for each pair of vertices x, y either (x, y) is an arc or
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(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
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Chapter 2 Solutions
Mathematical Methods in the Physical Sciences
Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...
Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.4 - For each of the following numbers, first visualize...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - First simplify each of the following numbers to...Ch. 2.5 - Find each of the following in rectangular (a+bi)...Ch. 2.5 - Find each of the following in rectangular (a+bi)...Ch. 2.5 - Find each of the following in rectangular (a+bi)...Ch. 2.5 - Find each of the following in rectangular (a+bi)...Ch. 2.5 - Find each of the following in rectangular (a+bi)...Ch. 2.5 - Find each of the following in rectangular (a+bi)...Ch. 2.5 - Prove that the conjugate of the quotient of two...Ch. 2.5 - Find the absolute value of each of the following...Ch. 2.5 - Find the absolute value of each of the following...Ch. 2.5 - Find the absolute value of each of the following...Ch. 2.5 - Find the absolute value of each of the following...Ch. 2.5 - Find the absolute value of each of the following...Ch. 2.5 - Find the absolute value of each of the following...Ch. 2.5 - Find the absolute value of each of the following...Ch. 2.5 - Find the absolute value of each of the following...Ch. 2.5 - Find the absolute value of each of the following...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Solve for all possible values of the real numbers...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Describe geometrically the set of points in the...Ch. 2.5 - Show that z1z2 is the distance between the points...Ch. 2.5 - Find x and y as functions of t for the example...Ch. 2.5 - Find and a if z=(1it)/(2t+i).Ch. 2.5 - Find and a if z=cos2t+isin2t. Can you describe...Ch. 2.6 - Prove that an absolutely convergent series of...Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Test each of the following series for convergence....Ch. 2.6 - Prove that a series of complex terms diverges if...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Find the disk on convergence for each of the...Ch. 2.7 - Verify the series in (7.3) by computer. Also show...Ch. 2.8 - Show from the power series (8.1) that...Ch. 2.8 - Show from the power series (8.1) that ddzez=ezCh. 2.8 - Find the power series for excosx and for exsinx...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Express the following complex numbers in the x+iy...Ch. 2.9 - Show that for any real y,eiy=1. Hence show that...Ch. 2.9 - Show that the absolute value of a product of two...Ch. 2.9 - Use Problems 27 and 28 to find the following...Ch. 2.9 - Use Problems 27 and 28 to find the following...Ch. 2.9 - Use Problems 27 and 28 to find the following...Ch. 2.9 - Use Problems 27 and 28 to find the following...Ch. 2.9 - Use Problems 27 and 28 to find the following...Ch. 2.9 - Use Problems 27 and 28 to find the following...Ch. 2.9 - Use Problems 27 and 28 to find the following...Ch. 2.9 - Use Problems 27 and 28 to find the following...Ch. 2.9 - Use Problems 27 and 28 to find the following...Ch. 2.9 - Prob. 38PCh. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Follow steps (a), (b), (c) above to find all the...Ch. 2.10 - Using the fact that a complex equation is really...Ch. 2.10 - As in Problem 27, find the formulas for sin3 and...Ch. 2.10 - Show that the center of mass of three identical...Ch. 2.10 - Show that the sum of the three cube roots of 8 is...Ch. 2.10 - Show that the sum of the n nth roots of any...Ch. 2.10 - The three cube roots of +1 are often called...Ch. 2.10 - Verify the results given for the roots in Example...Ch. 2.11 - Define sin z and Cos z by their power series....Ch. 2.11 - Solve the equations ei=cosisin,forcosandsin and so...Ch. 2.11 - Find each of the following in rectangular form...Ch. 2.11 - Find each of the following in rectangular form...Ch. 2.11 - Find each of the following in rectangular form...Ch. 2.11 - Find each of the following in rectangular form...Ch. 2.11 - Find each of the following in rectangular form...Ch. 2.11 - Find each of the following in rectangular form...Ch. 2.11 - Find each of the following in rectangular form...Ch. 2.11 - Find each of the following in rectangular form...Ch. 2.11 - In the following integrals express the sines and...Ch. 2.11 - In the following integrals express the sines and...Ch. 2.11 - In the following integrals express the sines and...Ch. 2.11 - In the following integrals express the sines and...Ch. 2.11 - In the following integrals express the sines and...Ch. 2.11 - In the following integrals express the sines and...Ch. 2.11 - Evaluate eax(acosbx+bsinbx)a2+b2 and take real...Ch. 2.11 - Evaluate e(a+ib)xdx and take real and imaginary...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Verify each of the following by using equations...Ch. 2.12 - Show that enz=(coshz+sinhz)n=coshnz+sinhnz. Use...Ch. 2.12 - Use a computer to plot graphs of sinh x, cosh x,...Ch. 2.12 - Using (12.2) and (8. l), find, in summation form,...Ch. 2.12 - Find the real part, the imaginary part and the...Ch. 2.12 - Find the real part, the imaginary part and the...Ch. 2.12 - Find the real part, the imaginary part and the...Ch. 2.12 - Find the real part, the imaginary part and the...Ch. 2.12 - Find the real part, the imaginary part and the...Ch. 2.12 - Find the real part, the imaginary part and the...Ch. 2.12 - Find each of the following in the x+iy form and...Ch. 2.12 - Find each of the following in the x+iy form and...Ch. 2.12 - Find each of the following in the x+iy form and...Ch. 2.12 - Find each of the following in the x+iy form and...Ch. 2.12 - Find each of the following in the x+iy form and...Ch. 2.12 - Find each of the following in the x+iy form and...Ch. 2.12 - Find each of the following in the x+iy form and...Ch. 2.12 - Find each of the following in the x+iy form and...Ch. 2.12 - Find each of the following in the x+iy form and...Ch. 2.12 - The functions sin t, cos t, …, are called...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Prob. 12PCh. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Evaluate each if the following in x+iy, and...Ch. 2.14 - Show that (ab)c can have more values than abc. As...Ch. 2.14 - Use a computer to find the three solutions of the...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Prob. 7PCh. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Find each of the following in the x+iy form and...Ch. 2.15 - Show that tan z never takes the values +1. Hint:...Ch. 2.15 - Show that tanh z never takes the values +1.Ch. 2.16 - Show that if the line through the origin and the...Ch. 2.16 - In each of the following problems, z represents...Ch. 2.16 - In each of the following problems, z represents...Ch. 2.16 - Z=(1+i)t-(2+i)(1-t). Hint: Show that the particle...Ch. 2.16 - z=z1t+z2(1t). Hint: See Problem 4; the straight...Ch. 2.16 - In electricity we learn that the resistance of two...Ch. 2.16 - In electricity we learn that the resistance of two...Ch. 2.16 - Find the impedance of the circuit in Figure 16.2...Ch. 2.16 - For the circuit in Figure 16.1: (a) Find in terms...Ch. 2.16 - Repeat Problem 9 for a circuit consisting of R, L,...Ch. 2.16 - Prove that...Ch. 2.16 - In optics, the following expression needs to be...Ch. 2.16 - Verify that eit, eit, cost, and sint satisfy...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Find one or more values of each of the following...Ch. 2.17 - Prob. 13MPCh. 2.17 - Find the disk of convergence of the series ...Ch. 2.17 - For what z is the series z1nn absolutely...Ch. 2.17 - Describe the set of points z for which Re(ei/2z)2.Ch. 2.17 - Verify the formulas in Problems 17 to 24....Ch. 2.17 - Verify the formulas in Problems 17 to 24....Ch. 2.17 - Verify the formulas in Problems 17 to 24....Ch. 2.17 - Verify the formulas in Problems 17 to 24....Ch. 2.17 - Verify the formulas in Problems 17 to 24....Ch. 2.17 - Verify the formulas in Problems 17 to 24....Ch. 2.17 - Verify the formulas in Problems 17 to 24....Ch. 2.17 - Verify the formulas in Problems 17 to 24....Ch. 2.17 - (a) Show that cosz=cosz. (b) Is sinz=sinz? (c) If...Ch. 2.17 - Find 2eiiiei+2. Hint: See equation (5.1).Ch. 2.17 - Show that Rez=12(z+z) and that Imz=(1/2i)(zz)....Ch. 2.17 - Evaluate the following absolute square of a...Ch. 2.17 - If z=ab and 1a+b=1a+1b, find z.Ch. 2.17 - Write the series for ex(1+i). Write 1+i in the rei...Ch. 2.17 - Show that if a sequence of complex numbers tends...Ch. 2.17 - Use a series you know to show that n=0(1+i)nn!=e.
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- . 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_forwardLet 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_forward
- please work out more details give the solution.arrow_forwardProblem #5 Suppose you flip a two sided fair coin ("heads" or "tails") 8 total times. a). How many ways result in 6 tails and 2 heads? b). How many ways result in 2 tails and 6 heads? c). Compare your answers to part (a) and (b) and explain in a few sentences why the comparison makes sense.arrow_forwardBurger Dome sells hamburgers, cheeseburgers, french fries, soft drinks, and milk shakes, as well as a limited number of specialty items and dessert selections. Although Burger Dome would like to serve each customer immediately, at times more customers arrive than can be handled by the Burger Dome food service staff. Thus, customers wait in line to place and receive their orders. Burger Dome analyzed data on customer arrivals and concluded that the arrival rate is 30 customers per hour. Burger Dome also studied the order-filling process and found that a single employee can process an average of 44 customer orders per hour. Burger Dome is concerned that the methods currently used to serve customers are resulting in excessive waiting times and a possible loss of sales. Management wants to conduct a waiting line study to help determine the best approach to reduce waiting times and improve service. Suppose Burger Dome establishes two servers but arranges the restaurant layout so that an…arrow_forward
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