Mathematics For Machine Technology
8th Edition
ISBN: 9781337798310
Author: Peterson, John.
Publisher: Cengage Learning,
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Chapter 13, Problem 1A
To determine
To add:
The given expression.
Expert Solution & Answer
Answer to Problem 1A
Explanation of Solution
Given:
The expression is
Calculation:
Convert the mixed fraction into lowest form thus,
Conclusion:
The addition of the given expression is
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Students have asked these similar questions
Habitat for Humanity International is a nonprofit organization dedicated to eliminating poverty housing worldwide. Suppose the following table contains estimates of activity times (in days) involved in the construction of a house that Habitat for Humanity is building.
Activity Optimistic Most Probable Pessimistic
A
6
7.0
8
B
7
8.0
9
C
7
7.5
11.5
D
7
9.0
10
E
6
7.0
9
F
3
4.0
5
(a) Compute the expected activity completion times and the variance for each activity. (Round your answers to two decimal places.)
Activity
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A
B
C
D
E
F
Variance
(b) An analyst determined that the critical path consists of activities B-D-F. Compute the expected project completion time and the variance of this path. (Round your answers to two decimal places.)
expected project completion time
variance of projection completion time
To manage the production of an animated movie, Pixar Animation Studios has listed the major activities involved, the predecessor relationships, and activity times (in months). The project is completed when activities F and G are both complete.
Activity
Immediate Predecessor
G
A
B
CD
E
A A
C, B C, B
D, E
Time
4
6
2
6
3
3
5
(a) Find the critical path. (Enter your answers as a comma-separated list.)
(b) The project must be completed in 1.5 years. Do you anticipate difficulty in meeting the deadline? Explain.
The critical path activities require
months to complete. Thus the project ---Select--- be completed in 1.5 years.
To help with preparations, a couple has devised a project network to describe the activities that must be completed by their wedding date. In addition, they have estimated the time of each activity (in weeks).
Start
D
F
B
E
G
Activity A B C
DEFGH
Time 5 3 6 6 6 3 11 10
(a) Identify the critical path. (Enter your answers as a comma-separated list.)
H
Finish
(b) How much time (in weeks) will be needed to complete this project?
week(s)
(c) Can activity D be delayed without delaying the entire project? If so, by how many weeks? (If the activity can not be delayed, enter 0.)
week(s)
(d) Can activity C be delayed without delaying the entire project? If so, by how many weeks? (If the activity can not be delayed, enter 0.)
week(s)
(e) What is the schedule for activity E (in weeks)?
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Latest Start
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week(s)
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Chapter 13 Solutions
Mathematics For Machine Technology
Ch. 13 - Prob. 1ACh. 13 - Express the common fraction 44125 as a decimal...Ch. 13 - Prob. 3ACh. 13 - Use Figure 132 to answer Exercises 4 through 6....Ch. 13 - Use Figure 132 to answer Exercises 4 through 6....Ch. 13 - Use Figure 132 to answer Exercises 4 through 6....Ch. 13 - Prob. 7ACh. 13 - Divide the numbers in Exercises 7 through 9....Ch. 13 - Divide the numbers in Exercises 7 through 9....Ch. 13 - As indicated in Figure 133, rack sizes are given...
Ch. 13 - Four sets of equally spaced holes are shown in the...Ch. 13 - A cross-sectional view of a bevel gear is shown in...Ch. 13 - How many complete bushings each 14.60 millimeters...Ch. 13 - A shaft is being cut in a lathe. The tool feeds...Ch. 13 - How much stock per stroke is removed by the wheel...Ch. 13 - An automatic screw machine is capable of producing...Ch. 13 - The bolt in Figure 136 has 7.7 threads. Determine...Ch. 13 - The block in Figure 13-7 has a threaded hole with...Ch. 13 - The length of a side of a square equals the...Ch. 13 - All sections of the block in Figure 13-9 are equal...
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