Elementary Algebra For College Students (10th Edition)
10th Edition
ISBN: 9780134759005
Author: Allen R. Angel, Dennis Runde
Publisher: PEARSON
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Chapter 8.2, Problem 39ES
To determine
(a)
How many months would both mortgage plans have the same total cost?
To determine
(b)
Should Dona refinance if she plans to remain in her house for 12 years?
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1.2.19. Let and s be natural numbers. Let G be the simple graph with vertex set
Vo... V„−1 such that v; ↔ v; if and only if |ji| Є (r,s). Prove that S has exactly k
components, where k is the greatest common divisor of {n, r,s}.
Question 3
over a field K.
In this question, MË(K) denotes the set of n × n matrices
(a) Suppose that A Є Mn(K) is an invertible matrix. Is it always true that A is
equivalent to A-¹? Justify your answer.
(b) Let B be given by
8
B = 0 7 7
0 -7 7
Working over the field F2 with 2 elements, compute the rank of B as an element
of M2(F2).
(c) Let
1
C
-1 1
[4]
[6]
and consider C as an element of M3(Q). Determine the minimal polynomial
mc(x) and hence, or otherwise, show that C can not be diagonalised.
[7]
(d) Show that C in (c) considered as an element of M3(R) can be diagonalised. Write
down all the eigenvalues. Show your working.
[8]
R denotes the field of real numbers, Q denotes the field of rationals, and
Fp denotes the field of p elements given by integers modulo p. You may refer to general
results from lectures.
Question 1
For each non-negative integer m, let R[x]m denote the
vector space consisting of the polynomials in x with coefficients in R and of degree ≤ m.
x²+2, V3 = 5. Prove that (V1, V2, V3) is a linearly independent
(a) Let vi = x, V2 =
list in R[x] 3.
(b) Let V1, V2, V3 be as defined in (a). Find a vector v € R[×]3 such that (V1, V2, V3, V4)
is a basis of R[x] 3.
[8]
[6]
(c) Prove that the map ƒ from R[x] 2 to R[x]3 given by f(p(x)) = xp(x) — xp(0) is a
linear map.
[6]
(d) Write down the matrix for the map ƒ defined in (c) with respect to the basis
(2,2x + 1, x²) of R[x] 2 and the basis (1, x, x², x³) of R[x] 3.
[5]
Chapter 8 Solutions
Elementary Algebra For College Students (10th Edition)
Ch. 8.1 - Fill in the blanks with the appropriate word,...Ch. 8.1 - Prob. 2ESCh. 8.1 - Prob. 3ESCh. 8.1 - Prob. 4ESCh. 8.1 - Prob. 5ESCh. 8.1 - Prob. 6ESCh. 8.1 - Prob. 7ESCh. 8.1 - Prob. 8ESCh. 8.1 - Prob. 9ESCh. 8.1 - Prob. 10ES
Ch. 8.1 - Prob. 11ESCh. 8.1 - Determine which, if any, of the following ordered...Ch. 8.1 - Prob. 13ESCh. 8.1 - Prob. 14ESCh. 8.1 - Prob. 15ESCh. 8.1 - Prob. 16ESCh. 8.1 - Prob. 17ESCh. 8.1 - Prob. 18ESCh. 8.1 - Prob. 19ESCh. 8.1 - Prob. 20ESCh. 8.1 - Prob. 21ESCh. 8.1 - Prob. 22ESCh. 8.1 - Prob. 23ESCh. 8.1 - Prob. 24ESCh. 8.1 - Prob. 25ESCh. 8.1 - Prob. 26ESCh. 8.1 - Prob. 27ESCh. 8.1 - Prob. 28ESCh. 8.1 - Prob. 29ESCh. 8.1 - Express each equation in slope-intercept form....Ch. 8.1 - Prob. 31ESCh. 8.1 - Express each equation in slope-intercept form....Ch. 8.1 - Prob. 33ESCh. 8.1 - Prob. 34ESCh. 8.1 - Prob. 35ESCh. 8.1 - Prob. 36ESCh. 8.1 - Prob. 37ESCh. 8.1 - Prob. 38ESCh. 8.1 - Prob. 39ESCh. 8.1 - Prob. 40ESCh. 8.1 - Prob. 41ESCh. 8.1 - Prob. 42ESCh. 8.1 - Prob. 43ESCh. 8.1 - Prob. 44ESCh. 8.1 - Prob. 45ESCh. 8.1 - Prob. 46ESCh. 8.1 - Prob. 47ESCh. 8.1 - Prob. 48ESCh. 8.1 - Prob. 49ESCh. 8.1 - Prob. 50ESCh. 8.1 - Prob. 51ESCh. 8.1 - Prob. 52ESCh. 8.1 - Prob. 53ESCh. 8.1 - Prob. 54ESCh. 8.1 - Prob. 55ESCh. 8.1 - Prob. 56ESCh. 8.1 - Prob. 57ESCh. 8.1 - Prob. 58ESCh. 8.1 - Prob. 59ESCh. 8.1 - Prob. 60ESCh. 8.1 - Prob. 61ESCh. 8.1 - Prob. 62ESCh. 8.1 - Prob. 63ESCh. 8.1 - Prob. 64ESCh. 8.1 - Prob. 65ESCh. 8.1 - Prob. 66ESCh. 8.1 - Prob. 67ESCh. 8.1 - Prob. 68ESCh. 8.1 - Prob. 69ESCh. 8.1 - Prob. 70ESCh. 8.1 - Prob. 71ESCh. 8.1 - Prob. 72ESCh. 8.1 - Prob. 73ESCh. 8.1 - Prob. 74ESCh. 8.1 - Prob. 75ESCh. 8.1 - Prob. 76ESCh. 8.1 - Prob. 77ESCh. 8.1 - Prob. 78ESCh. 8.1 - Prob. 79ESCh. 8.1 - Prob. 80ESCh. 8.1 - Prob. 81ESCh. 8.1 - Prob. 82ESCh. 8.1 - Prob. 83ESCh. 8.2 - Prob. 1ESCh. 8.2 - Prob. 2ESCh. 8.2 - Prob. 3ESCh. 8.2 - Prob. 4ESCh. 8.2 - Prob. 5ESCh. 8.2 - Prob. 6ESCh. 8.2 - Prob. 7ESCh. 8.2 - Prob. 8ESCh. 8.2 - Prob. 9ESCh. 8.2 - Prob. 10ESCh. 8.2 - Prob. 11ESCh. 8.2 - Prob. 12ESCh. 8.2 - Prob. 13ESCh. 8.2 - Prob. 14ESCh. 8.2 - Prob. 15ESCh. 8.2 - Prob. 16ESCh. 8.2 - Prob. 17ESCh. 8.2 - Prob. 18ESCh. 8.2 - Prob. 19ESCh. 8.2 - Prob. 20ESCh. 8.2 - Prob. 21ESCh. 8.2 - Prob. 22ESCh. 8.2 - Prob. 23ESCh. 8.2 - Determine the solution to each system of equations...Ch. 8.2 - Prob. 25ESCh. 8.2 - Prob. 26ESCh. 8.2 - Prob. 27ESCh. 8.2 - Prob. 28ESCh. 8.2 - Prob. 29ESCh. 8.2 - Prob. 30ESCh. 8.2 - Prob. 31ESCh. 8.2 - Prob. 32ESCh. 8.2 - Prob. 33ESCh. 8.2 - Prob. 34ESCh. 8.2 - Prob. 35ESCh. 8.2 - Prob. 36ESCh. 8.2 - Prob. 37ESCh. 8.2 - Prob. 38ESCh. 8.2 - Prob. 39ESCh. 8.2 - Prob. 40ESCh. 8.2 - Prob. 41ESCh. 8.2 - Prob. 42ESCh. 8.2 - Prob. 43ESCh. 8.2 - Prob. 44ESCh. 8.2 - Prob. 45ESCh. 8.2 - Prob. 46ESCh. 8.2 - Prob. 47ESCh. 8.2 - Prob. 48ESCh. 8.2 - Prob. 49ESCh. 8.3 - Fill in the blanks with the appropriate word,...Ch. 8.3 - Prob. 2ESCh. 8.3 - Prob. 3ESCh. 8.3 - Prob. 4ESCh. 8.3 - Prob. 5ESCh. 8.3 - Prob. 6ESCh. 8.3 - Prob. 7ESCh. 8.3 - Prob. 8ESCh. 8.3 - Prob. 9ESCh. 8.3 - Solve each system of equations using the addition...Ch. 8.3 - Prob. 11ESCh. 8.3 - Solve each system of equations using the addition...Ch. 8.3 - Prob. 13ESCh. 8.3 - Prob. 14ESCh. 8.3 - Prob. 15ESCh. 8.3 - Prob. 16ESCh. 8.3 - Prob. 17ESCh. 8.3 - Prob. 18ESCh. 8.3 - Prob. 19ESCh. 8.3 - Prob. 20ESCh. 8.3 - Solve each system of equations using the addition...Ch. 8.3 - Prob. 22ESCh. 8.3 - Prob. 23ESCh. 8.3 - Prob. 24ESCh. 8.3 - Prob. 25ESCh. 8.3 - Prob. 26ESCh. 8.3 - Prob. 27ESCh. 8.3 - Prob. 28ESCh. 8.3 - Prob. 29ESCh. 8.3 - Prob. 30ESCh. 8.3 - Prob. 31ESCh. 8.3 - Prob. 32ESCh. 8.3 - Prob. 33ESCh. 8.3 - Prob. 34ESCh. 8.3 - Prob. 35ESCh. 8.3 - Prob. 36ESCh. 8.3 - Prob. 37ESCh. 8.3 - Prob. 38ESCh. 8.3 - Prob. 39ESCh. 8.3 - Prob. 40ESCh. 8.3 - Prob. 41ESCh. 8.3 - Prob. 42ESCh. 8.3 - Prob. 43ESCh. 8.3 - Prob. 44ESCh. 8.3 - Prob. 45ESCh. 8.3 - Prob. 46ESCh. 8.3 - Prob. 47ESCh. 8.3 - Prob. 48ESCh. 8.3 - Prob. 49ESCh. 8.3 - Prob. 50ESCh. 8.3 - Prob. 51ESCh. 8.3 - Prob. 52ESCh. 8.3 - Prob. 53ESCh. 8.3 - In Exercises 53 and 54, solve each system of...Ch. 8.3 - Prob. 55ESCh. 8.3 - Prob. 56ESCh. 8.3 - Prob. 57ESCh. 8.3 - Prob. 58ESCh. 8.3 - Prob. 59ESCh. 8.3 - Prob. 60ESCh. 8.3 - Prob. 61ESCh. 8.3 - Prob. 62ESCh. 8.4 - Prob. 1ESCh. 8.4 - Prob. 2ESCh. 8.4 - Prob. 3ESCh. 8.4 - Prob. 4ESCh. 8.4 - Prob. 5ESCh. 8.4 - Prob. 6ESCh. 8.4 - Prob. 7ESCh. 8.4 - Prob. 8ESCh. 8.4 - Prob. 9ESCh. 8.4 - Prob. 10ESCh. 8.4 - Prob. 11ESCh. 8.4 - Prob. 12ESCh. 8.4 - Prob. 13ESCh. 8.4 - Prob. 14ESCh. 8.4 - Prob. 15ESCh. 8.4 - Prob. 16ESCh. 8.4 - Prob. 17ESCh. 8.4 - Prob. 18ESCh. 8.4 - Prob. 19ESCh. 8.4 - Prob. 20ESCh. 8.4 - Prob. 21ESCh. 8.4 - Prob. 22ESCh. 8.4 - Prob. 23ESCh. 8.4 - Prob. 24ESCh. 8.4 - Speed Boat Dunng a race, Elizabeths speed boat...Ch. 8.4 - Prob. 26ESCh. 8.4 - Prob. 27ESCh. 8.4 - Prob. 28ESCh. 8.4 - Prob. 29ESCh. 8.4 - Prob. 30ESCh. 8.4 - Prob. 31ESCh. 8.4 - Prob. 32ESCh. 8.4 - Prob. 33ESCh. 8.4 - Prob. 34ESCh. 8.4 - Prob. 35ESCh. 8.4 - Prob. 36ESCh. 8.4 - Prob. 37ESCh. 8.4 - Prob. 38ESCh. 8.4 - Prob. 39ESCh. 8.4 - Prob. 40ESCh. 8.4 - Prob. 41ESCh. 8.4 - Alloys By weight, an alloy of brass is 70% copper...Ch. 8.4 - Pressurized Tanks Two pressurized tanks are...Ch. 8.4 - Prob. 44ESCh. 8.4 - Prob. 45ESCh. 8.4 - Prob. 46ESCh. 8.4 - Prob. 47ESCh. 8.4 - Prob. 48ESCh. 8.5 - Prob. 1ESCh. 8.5 - Prob. 2ESCh. 8.5 - Prob. 3ESCh. 8.5 - Prob. 4ESCh. 8.5 - Prob. 5ESCh. 8.5 - Prob. 6ESCh. 8.5 - Prob. 7ESCh. 8.5 - Prob. 8ESCh. 8.5 - Prob. 9ESCh. 8.5 - Prob. 10ESCh. 8.5 - Prob. 11ESCh. 8.5 - Prob. 12ESCh. 8.5 - Prob. 13ESCh. 8.5 - Prob. 14ESCh. 8.5 - Prob. 15ESCh. 8.5 - Prob. 16ESCh. 8.5 - Prob. 17ESCh. 8.5 - Prob. 18ESCh. 8.5 - Prob. 19ESCh. 8.5 - Prob. 20ESCh. 8.5 - Prob. 21ESCh. 8.5 - Prob. 22ESCh. 8.5 - Prob. 23ESCh. 8.5 - Prob. 24ESCh. 8.5 - Prob. 25ESCh. 8.5 - Prob. 26ESCh. 8.5 - Prob. 27ESCh. 8.5 - Prob. 28ESCh. 8.5 - Prob. 29ESCh. 8.5 - Construct a system of two linear inequalities that...Ch. 8.5 - Prob. 31ESCh. 8.5 - Prob. 32ESCh. 8.5 - Prob. 33ESCh. 8.5 - Prob. 34ESCh. 8.5 - Prob. 35ESCh. 8.5 - Prob. 36ESCh. 8 - Determine which of the following ordered pairs...Ch. 8 - Prob. 2MCTCh. 8 - Prob. 3MCTCh. 8 - Prob. 4MCTCh. 8 - Prob. 5MCTCh. 8 - Prob. 6MCTCh. 8 - Prob. 7MCTCh. 8 - Prob. 8MCTCh. 8 - Prob. 9MCTCh. 8 - Prob. 10MCTCh. 8 - Prob. 11MCTCh. 8 - Prob. 12MCTCh. 8 - Prob. 13MCTCh. 8 - Prob. 14MCTCh. 8 - Prob. 15MCTCh. 8 - Prob. 1RECh. 8 - Prob. 2RECh. 8 - Prob. 3RECh. 8 - Prob. 4RECh. 8 - Prob. 5RECh. 8 - Prob. 6RECh. 8 - Prob. 7RECh. 8 - Prob. 8RECh. 8 - Prob. 9RECh. 8 - Prob. 10RECh. 8 - Prob. 11RECh. 8 - Prob. 12RECh. 8 - Prob. 13RECh. 8 - Prob. 14RECh. 8 - Prob. 15RECh. 8 - Prob. 16RECh. 8 - Prob. 17RECh. 8 - Prob. 18RECh. 8 - Prob. 19RECh. 8 - Prob. 20RECh. 8 - Prob. 21RECh. 8 - Prob. 22RECh. 8 - Prob. 23RECh. 8 - Prob. 24RECh. 8 - Prob. 25RECh. 8 - Prob. 26RECh. 8 - Prob. 27RECh. 8 - Prob. 28RECh. 8 - Prob. 29RECh. 8 - Prob. 30RECh. 8 - Prob. 31RECh. 8 - Prob. 32RECh. 8 - Prob. 33RECh. 8 - Prob. 34RECh. 8 - Prob. 35RECh. 8 - Prob. 36RECh. 8 - Prob. 37RECh. 8 - Prob. 38RECh. 8 - Prob. 39RECh. 8 - Prob. 40RECh. 8 - Chemist A chemist has a 25% acid solution and a...Ch. 8 - Prob. 42RECh. 8 - Prob. 43RECh. 8 - Prob. 44RECh. 8 - Prob. 45RECh. 8 - Prob. 1PTCh. 8 - Prob. 2PTCh. 8 - Prob. 3PTCh. 8 - Prob. 4PTCh. 8 - Prob. 5PTCh. 8 - Prob. 6PTCh. 8 - Prob. 7PTCh. 8 - Prob. 8PTCh. 8 - Prob. 9PTCh. 8 - Prob. 10PTCh. 8 - Prob. 11PTCh. 8 - Prob. 12PTCh. 8 - Prob. 13PTCh. 8 - Prob. 14PTCh. 8 - Prob. 15PTCh. 8 - Prob. 16PTCh. 8 - Prob. 17PTCh. 8 - Prob. 18PTCh. 8 - Prob. 19PTCh. 8 - Prob. 20PTCh. 8 - Prob. 21PTCh. 8 - Prob. 22PTCh. 8 - Prob. 23PTCh. 8 - Prob. 24PTCh. 8 - Prob. 25PTCh. 8 - Prob. 1CRTCh. 8 - Prob. 2CRTCh. 8 - Prob. 3CRTCh. 8 - Prob. 4CRTCh. 8 - Prob. 5CRTCh. 8 - Prob. 6CRTCh. 8 - Prob. 7CRTCh. 8 - Prob. 8CRTCh. 8 - Prob. 9CRTCh. 8 - Prob. 10CRTCh. 8 - Prob. 11CRTCh. 8 - Prob. 12CRTCh. 8 - Prob. 13CRTCh. 8 - Prob. 14CRTCh. 8 - Prob. 15CRTCh. 8 - Prob. 16CRTCh. 8 - Prob. 17CRTCh. 8 - Prob. 18CRTCh. 8 - Prob. 19CRTCh. 8 - Prob. 20CRT
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