Basic College Mathematics (6th Edition) (What's New in Developmental Math)
6th Edition
ISBN: 9780134840420
Author: Elayn Martin-Gay
Publisher: PEARSON
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Chapter B, Problem 24PFE
To determine
The value of the unknown number n in the proportion
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3.15 (B). A beam ABCD is simply supported at B and C with ABCD=2m; BC 4 m. It
carries a point load of 60 KN at the free end A, a Uniformly distributed load of 60
KN/m between B and C and an anticlockwise moment of 80 KN m in the plane of
the beam applied at the free end D. Sketch and dimension the S.F. and B.M.
diagrams, and determine the position and magnitude of the maximum bending
moment. CEL.E.] CS.F. 60, 170, 70KN, B.M. 120, +120.1, +80 kNm, 120.1 kNm at 2.83 m to
right of 8.7
7.1 (A/B). A Uniform I-section beam has flanges 150 mm wide by 8 mm thick and a
web 180 mm wide and 8 mm thick. At a certain section there is a shearing force of
120 KN. Draw a diagram to illustrate the distribution of shear stress across the
section as a result of bending. What is the maximum shear stress? [86.7 MN/m².
1. Let Ả = −2x + 3y+42, B =
-
-
7x +lý +22, and C = −1x + 2y +
42. Find (a) Ả X B (b) ẢX B°C c)
→→
Ả B X C d) ẢB°C e) ẢX B XC.
Chapter B Solutions
Basic College Mathematics (6th Edition) (What's New in Developmental Math)
Ch. B - Suppose you make $16 per hour.
Calculate your...Ch. B - A lab technician needs a solution containing 20...Ch. B - Prob. 3ECh. B - Prob. 4ECh. B - Prob. 5ECh. B - Prob. 6ECh. B - Prob. 7ECh. B - Prob. 8ECh. B - Prob. 9ECh. B - Prob. 10E
Ch. B - Prob. 11ECh. B - A car travels at a rate of 57 miles per hour.
How...Ch. B - A tortilla-making machine makes 16 tortillas per...Ch. B - During a flood watch in New Orleans, Louisiana, an...Ch. B - Prob. 15ECh. B - Prob. 16ECh. B - Prob. 17ECh. B - Prob. 18ECh. B - Prob. 1PFECh. B - Prob. 2PFECh. B - Prob. 3PFECh. B - Prob. 4PFECh. B - Prob. 5PFECh. B - Note: Exercises 1–41 review operations with...Ch. B - Note: Exercises 1–41 review operations with...Ch. B - Note: Exercises 1–41 review operations with...Ch. B - Prob. 9PFECh. B - Prob. 10PFECh. B - Prob. 11PFECh. B - Prob. 12PFECh. B - Prob. 13PFECh. B - Prob. 14PFECh. B - Prob. 15PFECh. B - Prob. 16PFECh. B - Prob. 17PFECh. B - Prob. 18PFECh. B - Note: Exercises 1–41 review operations with...Ch. B - Note: Exercises 1–41 review operations with...Ch. B - Note: Exercises 1–41 review operations with...Ch. B - Prob. 22PFECh. B - Prob. 23PFECh. B - Prob. 24PFECh. B - Prob. 25PFECh. B - Prob. 26PFECh. B - Prob. 27PFECh. B - Prob. 28PFECh. B - Prob. 29PFECh. B - Prob. 30PFECh. B - Prob. 31PFECh. B - Note: Exercises 1–41 review operations with...Ch. B - Note: Exercises 1–41 review operations with...Ch. B - Note: Exercises 1–41 review operations with...Ch. B - Prob. 35PFECh. B - Prob. 36PFECh. B - Prob. 37PFECh. B - Prob. 38PFECh. B - Prob. 39PFECh. B - Prob. 40PFECh. B - Prob. 41PFECh. B - Prob. 42PFECh. B - Prob. 43PFECh. B - Prob. 44PFECh. B - Note: Exercises 42–51 may contain signed numbers....Ch. B - Note: Exercises 42–51 may contain signed numbers....Ch. B - Note: Exercises 42–51 may contain signed numbers....Ch. B - Prob. 48PFECh. B - Prob. 49PFECh. B - Prob. 50PFECh. B - Prob. 51PFE
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- 3.13 (B). A beam ABC, 6 m long, is simply-supported at the left-hand end A and at B I'm from the right-hand end C. The beam is of weight 100 N/metre run. (a) Determine the reactions at A and B. (b) Construct to scales of 20 mm = 1 m and 20 mm = 100 N, the shearing-force diagram for the beam, indicating thereon the principal values. (c) Determine the magnitude and position of the maximum bending moment. (You may, if you so wish, deduce the answers from the shearing force diagram without constructing a full or partial bending-moment diagram.) [C.G.] C240 N, 360 N, 288 Nm, 2.4 m from A.]arrow_forwardSuppose that Sue and Bill each make a confidence interval out of the same data set, but Sue wants a confidence level of 80 percent compared to Bill’s 90 percent. How do their margins of error compare?arrow_forwardSuppose that you conduct a study twice, and the second time you use four times as many people as you did the first time. How does the change affect your margin of error? (Assume the other components remain constant.)arrow_forward
- QUESTION 2 For each system below, determine whether it displays compensatory growth, depensatory growth, or critical depensation. Justify your answer in each case. (d) N = N(N − C₁) (C2 - N) where 0 < C1 < C2.arrow_forward5. Using parentheses make sense of the expression V · VXVV · Å where Ả = Ã(x, y, z). Is the result a vector or a scaler?arrow_forwardFor each system below, determine whether it displays compensatory growth, depensatory growth, or critical depensation. Justify your answer in each case. (b) N = rN²e¯, where r > 0, K > 0.arrow_forward
- Out of a sample of 200 babysitters, 70 percent are girls, and 30 percent are guys. What’s the margin of error for the percentage of female babysitters? Assume 95 percent confidence.What’s the margin of error for the percentage of male babysitters? Assume 95 percent confidence.arrow_forwardYou sample 100 fish in Pond A at the fish hatchery and find that they average 5.5 inches with a standard deviation of 1 inch. Your sample of 100 fish from Pond B has the same mean, but the standard deviation is 2 inches. How do the margins of error compare? (Assume the confidence levels are the same.)arrow_forward3.10 (A/B). A beam ABCDE is simply supported at A and D. It carries the following loading: a distributed load of 30 kN/m between A and B, a concentrated load of 20 KN at B, a concentrated load of 20 KN at C, a concentrated load of 10 KN at E; a distributed load of 60 kN/m between 0 and E. Span AB = 1.5 BC = CD = DE 1 m. Calculate the value of the reactions at A and D and hence draw the S.F. and B.M. diagrams. What are the magnitude and position of the maximum B.M. on the beam? [41.1, 113.9 KN, 28.15 kNm; 1.37 m from A.J m,arrow_forward
- A survey of 1,000 dental patients produces 450 people who floss their teeth adequately. What’s the margin of error for this result? Assume 90 percent confidence.arrow_forward3.14 (B). A beam ABCD, 6 m long, is simply-supported at the right-hand end and at a point B Im from the left-hand end A. It carries a vertical load of 10 KN at A, a second concentrated load of 20 KN at C, 3 m from D, and a uniformly distributed load of 10 kN/m between C and D. Determine: (a) the values of the reactions at B and 0, (6) the position and magnitude of the maximum bending moment. [33 KN, 27 KN, 2.7 m from D, 36.45k Nm.]arrow_forwardQ₁/(a) Let S and T be subsets of a vector space X over a field F such that SCT,show that whether (1) if S generate X then T generate X or not. (2) if T generate X then S generate X or not. (b) Let X be a vector space over a field F and A,B are subsets of X such that A is convex set and B is affine set, show that whether AnB is convex set or not, and if f be a function from X into a space Y then f(B) is an affine set or not. /(a) Let M and N be two hyperspaces of a space X write a condition to prove MUN is a hyperspace of X and condition to get that MUN is not hyperspace of X. Write with prove application n Panach theoremarrow_forward
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