Mathematics for Machine Technology
7th Edition
ISBN: 9781133281450
Author: John C. Peterson, Robert D. Smith
Publisher: Cengage Learning
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Chapter 22, Problem 23A
Finding Percentage, Percent, and Base in Practical Applications
Solve the following problems.
23. Material cost for a job is $1260. The cost is 38.6% of the total cost. What is the total cost? Round the answer to the nearest dollar.
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Assume that a company is considering purchasing a machine for $50,000 that will have a five-year useful life and a $5,000 salvage value. The
machine will lower operating costs by $17,000 per year. The company's required rate of return is 15%. The net present value of this investment
is closest to:
Click here to view Exhibit 12B-1 and Exhibit 12B-2, to determine the appropriate discount factor(s) using the tables provided.
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7. [10 marks]
Let G
=
(V,E) be a 3-connected graph. We prove that for every x, y, z Є V, there is a
cycle in G on which x, y, and z all lie.
(a) First prove that there are two internally disjoint xy-paths Po and P₁.
(b) If z is on either Po or P₁, then combining Po and P₁ produces a cycle on which
x, y, and z all lie. So assume that z is not on Po and not on P₁. Now prove that
there are three paths Qo, Q1, and Q2 such that:
⚫each Qi starts at z;
• each Qi ends at a vertex w; that is on Po or on P₁, where wo, w₁, and w₂ are
distinct;
the paths Qo, Q1, Q2 are disjoint from each other (except at the start vertex
2) and are disjoint from the paths Po and P₁ (except at the end vertices wo,
W1, and w₂).
(c) Use paths Po, P₁, Qo, Q1, and Q2 to prove that there is a cycle on which x, y, and
z all lie. (To do this, notice that two of the w; must be on the same Pj.)
Chapter 22 Solutions
Mathematics for Machine Technology
Ch. 22 - What is 7.25% of 43.80? Round your answer to 2...Ch. 22 - Express 3.5% as a common fraction.Ch. 22 - Solve the proportion A12=2745 . If necessary,...Ch. 22 - Prob. 4ACh. 22 - Prob. 5ACh. 22 - Prob. 6ACh. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...
Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Prob. 17ACh. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Prob. 21ACh. 22 - Prob. 22ACh. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Prob. 25ACh. 22 - Prob. 26ACh. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Prob. 31ACh. 22 - A manufacturer estimates that 15,500 pieces per...Ch. 22 - The average percent defective product of a...Ch. 22 - Prob. 34ACh. 22 - Prob. 35ACh. 22 - The cost of one dozen cutters is listed as $525. A...Ch. 22 - A manufacturer's production this week is 3620...Ch. 22 - Two machines are used to produce the same product....Ch. 22 - Allowing for scrap, a firm produced 1890 pieces....Ch. 22 - A manufacturing company receives $122,000 upon the...Ch. 22 - Prob. 41A
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- Q/show that 2" +4 has a removable discontinuity at Z=2i Z(≥2-21)arrow_forwardRefer to page 100 for problems on graph theory and linear algebra. Instructions: • Analyze the adjacency matrix of a given graph to find its eigenvalues and eigenvectors. • Interpret the eigenvalues in the context of graph properties like connectivity or clustering. Discuss applications of spectral graph theory in network analysis. Link: [https://drive.google.com/file/d/1wKSrun-GlxirS3IZ9qoHazb9tC440 AZF/view?usp=sharing]arrow_forwardRefer to page 110 for problems on optimization. Instructions: Given a loss function, analyze its critical points to identify minima and maxima. • Discuss the role of gradient descent in finding the optimal solution. . Compare convex and non-convex functions and their implications for optimization. Link: [https://drive.google.com/file/d/1wKSrun-GlxirS31Z9qo Hazb9tC440 AZF/view?usp=sharing]arrow_forward
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- Give an example of a graph with at least 3 vertices that has exactly 2 automorphisms(one of which is necessarily the identity automorphism). Prove that your example iscorrect.arrow_forward3. [10 marks] Let Go (Vo, Eo) and G₁ = (V1, E1) be two graphs that ⚫ have at least 2 vertices each, ⚫are disjoint (i.e., Von V₁ = 0), ⚫ and are both Eulerian. Consider connecting Go and G₁ by adding a set of new edges F, where each new edge has one end in Vo and the other end in V₁. (a) Is it possible to add a set of edges F of the form (x, y) with x € Vo and y = V₁ so that the resulting graph (VUV₁, Eo UE₁ UF) is Eulerian? (b) If so, what is the size of the smallest possible F? Prove that your answers are correct.arrow_forwardLet T be a tree. Prove that if T has a vertex of degree k, then T has at least k leaves.arrow_forward
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