EBK BASIC TECHNICAL MATHEMATICS
11th Edition
ISBN: 9780134508290
Author: Evans
Publisher: PEARSON CUSTOM PUB.(CONSIGNMENT)
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Chapter 9.2, Problem 34E
To determine
The vertical and horizontal components of the velocity of a pioneer space.
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In Gallup's Annual Consumption Habits Poll, telephone interviews were conducted for a
random sample of 1014 adults aged 18 and over. One of the questions was, "How many
cups of coffee, if any, do you drink on an average day?" The following table shows the
results obtained (Gallup website, August 6, 2012).
Number of Cups
per Day
0
1
2
3
4 or more
Number of
Responses
365
264
193
91
101
Define a random variable x = number of cups of coffee consumed on an average day. Let
x=4 represent four or more cups.
a. Develop a probability distribution for x.
b. Compute the expected value of x.
c. Compute the variance of x.
d. Suppose we are only interested in adults who drink at least one cup of coffee on an
average day. For this group, let y = the number of cups of coffee consumed on an
average day. Compute the expected value of y and compare it to the expected value of x.
Ten major college football bowl games were played in January 2010, with the University
of Alabama beating the University of Texas 37 to 21 to become the national champion
of college football. The results of the 10 bowl games follow (USA Today, January 8, 2010).
Bowl Game
Score
Outback
Gator
Auburn 38 Northwestern 35
Florida State 33 West Virginia 21
Capital One
Penn State 19 LSU 17
Rose
Ohio State 26 Oregon 17
Florida 51 Cincinnati 24
Sugar
Cotton
Alamo
Fiesta
Mississippi State 21 Oklahoma State 7
Texas Tech 41 Michigan State 31
Boise State 17 TCU 10
Orange
Iowa 24 Georgia Tech 14
Championship
Alabama 37 Texas 21
Predicted
Point Margin
Actual
Point Margin
5
3
1
12
3
-2
14
3
9
-4
-3
4
229740706
14
10
10
16
The predicted winning point margin was based on Las Vegas betting odds approximately
one week before the bowl games were played. For example, Auburn was predicted to beat
Northwestern in the Outback Bowl by five points. The actual winning point margin for Au-
burn was three points. A…
Chapter 9 Solutions
EBK BASIC TECHNICAL MATHEMATICS
Ch. 9.1 - For the vectors in Example 2, show that R = B + C...Ch. 9.1 - Prob. 2PECh. 9.1 - Prob. 1ECh. 9.1 - Prob. 2ECh. 9.1 - Prob. 3ECh. 9.1 - Prob. 4ECh. 9.1 - Prob. 5ECh. 9.1 - Prob. 6ECh. 9.1 - Prob. 7ECh. 9.1 - Prob. 8E
Ch. 9.1 - Prob. 9ECh. 9.1 - Prob. 10ECh. 9.1 - Prob. 11ECh. 9.1 - Prob. 12ECh. 9.1 - Prob. 13ECh. 9.1 - Prob. 14ECh. 9.1 - Prob. 15ECh. 9.1 - In Exercises 15–18, draw the given vectors and...Ch. 9.1 - Prob. 17ECh. 9.1 - In Exercises 15–18, draw the given vectors and...Ch. 9.1 - Prob. 19ECh. 9.1 - Prob. 20ECh. 9.1 - Prob. 21ECh. 9.1 - Prob. 22ECh. 9.1 - Prob. 23ECh. 9.1 - In Exercises 19–40, find the indicated vector sums...Ch. 9.1 - Prob. 25ECh. 9.1 - Prob. 26ECh. 9.1 - Prob. 27ECh. 9.1 - Prob. 28ECh. 9.1 - Prob. 29ECh. 9.1 - Prob. 30ECh. 9.1 - Prob. 31ECh. 9.1 - Prob. 32ECh. 9.1 - Prob. 33ECh. 9.1 - Prob. 34ECh. 9.1 - Prob. 35ECh. 9.1 - Prob. 36ECh. 9.1 - Prob. 37ECh. 9.1 - Prob. 38ECh. 9.1 - In Exercises 19–40, find the indicated vector sums...Ch. 9.1 - Prob. 40ECh. 9.1 - Prob. 41ECh. 9.1 - Prob. 42ECh. 9.1 - Prob. 43ECh. 9.1 - Prob. 44ECh. 9.1 - Prob. 45ECh. 9.1 - Prob. 46ECh. 9.1 - In Exercises 41–48, solve the given problems. Use...Ch. 9.1 - Prob. 48ECh. 9.2 - For the vector in Example 1, change the angle to...Ch. 9.2 - Prob. 2PECh. 9.2 - Prob. 3PECh. 9.2 - Prob. 1ECh. 9.2 - Prob. 2ECh. 9.2 - Prob. 3ECh. 9.2 - Prob. 4ECh. 9.2 - Prob. 5ECh. 9.2 - In Exercises 5–10, find the horizontal and...Ch. 9.2 - Prob. 7ECh. 9.2 - In Exercises 5–10, find the horizontal and...Ch. 9.2 - Prob. 9ECh. 9.2 - In Exercises 5–10, find the horizontal and...Ch. 9.2 - Prob. 11ECh. 9.2 - In Exercises 11–20, find the x- and y-components...Ch. 9.2 - Prob. 13ECh. 9.2 - Prob. 14ECh. 9.2 - Prob. 15ECh. 9.2 - In Exercises 11–20, find the x- and y-components...Ch. 9.2 - Prob. 17ECh. 9.2 - Prob. 18ECh. 9.2 - Prob. 19ECh. 9.2 - In Exercises 11–20, find the x- and y-components...Ch. 9.2 - In Exercises 21–34, find the required horizontal...Ch. 9.2 - In Exercises 21–34, find the required horizontal...Ch. 9.2 - Prob. 23ECh. 9.2 - In Exercises 21–34, find the required horizontal...Ch. 9.2 - Prob. 25ECh. 9.2 - Prob. 26ECh. 9.2 - Prob. 27ECh. 9.2 - In Exercises 21–34, find the required horizontal...Ch. 9.2 - Prob. 29ECh. 9.2 - In Exercises 21–34, find the required horizontal...Ch. 9.2 - Prob. 31ECh. 9.2 - Prob. 32ECh. 9.2 - Prob. 33ECh. 9.2 - Prob. 34ECh. 9.3 - Prob. 1PECh. 9.3 - Prob. 2PECh. 9.3 - Prob. 3PECh. 9.3 - Prob. 1ECh. 9.3 - Prob. 2ECh. 9.3 - Prob. 3ECh. 9.3 - In Exercises 3–6, vectors A and B are at right...Ch. 9.3 - In Exercises 3–6, vectors A and B are at right...Ch. 9.3 - Prob. 6ECh. 9.3 - Prob. 7ECh. 9.3 - Prob. 8ECh. 9.3 - Prob. 9ECh. 9.3 - In Exercises 7–14, with the given sets of...Ch. 9.3 - Prob. 11ECh. 9.3 - Prob. 12ECh. 9.3 - Prob. 13ECh. 9.3 - Prob. 14ECh. 9.3 - Prob. 15ECh. 9.3 - In Exercises 15–32, add the given vectors by...Ch. 9.3 - Prob. 17ECh. 9.3 - Prob. 18ECh. 9.3 - Prob. 19ECh. 9.3 - In Exercises 15–32, add the given vectors by...Ch. 9.3 - Prob. 21ECh. 9.3 - Prob. 22ECh. 9.3 - Prob. 23ECh. 9.3 - In Exercises 15–32, add the given vectors by...Ch. 9.3 - Prob. 25ECh. 9.3 - Prob. 26ECh. 9.3 - In Exercises 15–32, add the given vectors by...Ch. 9.3 - Prob. 28ECh. 9.3 - In Exercises 15–32, add the given vectors by...Ch. 9.3 - In Exercises 15–32, add the given vectors by...Ch. 9.3 - In order to move an ocean liner into the channel,...Ch. 9.3 - In Exercises 15–32, add the given vectors by...Ch. 9.3 - Prob. 33ECh. 9.3 - Prob. 34ECh. 9.3 - Prob. 35ECh. 9.3 - Prob. 36ECh. 9.4 - A ship sails 32.50 mi due east and then turns...Ch. 9.4 - Prob. 2PECh. 9.4 - EXAMPLE 5 Equilibrium—forces on a climber
A 165-lb...Ch. 9.4 - Prob. 1ECh. 9.4 - Prob. 2ECh. 9.4 - Prob. 3ECh. 9.4 - A jet is 115 mi east and 88.3 mi north of Niagara...Ch. 9.4 - Prob. 5ECh. 9.4 - Prob. 6ECh. 9.4 - Prob. 7ECh. 9.4 - Toronto is 650 km at 19.0° north of east from...Ch. 9.4 - Prob. 9ECh. 9.4 - A rocket is launched with a vertical component of...Ch. 9.4 - In testing the behavior of a tire on ice, a force...Ch. 9.4 - To raise a crate, two ropes are attached to its...Ch. 9.4 - A storm front is moving east at 18.0 km/h and...Ch. 9.4 - Prob. 14ECh. 9.4 - Prob. 15ECh. 9.4 - Prob. 16ECh. 9.4 - In an automobile safety test, a shoulder and seat...Ch. 9.4 - Prob. 18ECh. 9.4 - A plane flies at 550 km/h into a head wind of 60...Ch. 9.4 - A ship’s navigator determines that the ship is...Ch. 9.4 - Prob. 21ECh. 9.4 - Prob. 22ECh. 9.4 - Prob. 23ECh. 9.4 - On a mountain trek, a pack mule becomes obstinate...Ch. 9.4 - Prob. 25ECh. 9.4 - Prob. 26ECh. 9.4 - Prob. 27ECh. 9.4 - A mine shaft goes due west 75 m from the opening...Ch. 9.4 - Prob. 29ECh. 9.4 -
A scuba diver’s body is directed downstream at...Ch. 9.4 - Prob. 31ECh. 9.4 - Prob. 32ECh. 9.4 - Prob. 33ECh. 9.4 - Prob. 34ECh. 9.4 - A plane is moving at 75.0 m/s, and a package with...Ch. 9.4 - Prob. 36ECh. 9.4 - Prob. 37ECh. 9.4 - Prob. 38ECh. 9.5 - Prob. 1PECh. 9.5 - Prob. 2PECh. 9.5 - Prob. 3PECh. 9.5 - Prob. 1ECh. 9.5 - Prob. 2ECh. 9.5 - In Exercises 3–20, solve the triangles with the...Ch. 9.5 - In Exercises 3–20, solve the triangles with the...Ch. 9.5 - In Exercises 3–20, solve the triangles with the...Ch. 9.5 - In Exercises 3–20, solve the triangles with the...Ch. 9.5 - In Exercises 3–20, solve the triangles with the...Ch. 9.5 - In Exercises 3–20, solve the triangles with the...Ch. 9.5 - In Exercises 3–20, solve the triangles with the...Ch. 9.5 - In Exercises 3–20, solve the triangles with the...Ch. 9.5 - In Exercises 3–20, solve the triangles with the...Ch. 9.5 - In Exercises 3–20, solve the triangles with the...Ch. 9.5 - In Exercises 3–20, solve the triangles with the...Ch. 9.5 - Prob. 14ECh. 9.5 - Prob. 15ECh. 9.5 - Prob. 16ECh. 9.5 - Prob. 17ECh. 9.5 - Prob. 18ECh. 9.5 - Prob. 19ECh. 9.5 - Prob. 20ECh. 9.5 - A small island is approximately a triangle in...Ch. 9.5 - A boat followed a triangular route going from dock...Ch. 9.5 - The loading ramp at a delivery service is 12.5 ft...Ch. 9.5 - In an aerial photo of a triangular field, the...Ch. 9.5 - The Pentagon (headquarters of the U.S. Department...Ch. 9.5 - Prob. 26ECh. 9.5 - Prob. 27ECh. 9.5 - Prob. 28ECh. 9.5 - Prob. 29ECh. 9.5 - When an airplane is landing at an 8250-ft runway,...Ch. 9.5 - Find the total length of the path of the laser...Ch. 9.5 - Prob. 32ECh. 9.5 - Prob. 33ECh. 9.5 - Prob. 34ECh. 9.5 - Prob. 35ECh. 9.5 - Prob. 36ECh. 9.5 - Prob. 37ECh. 9.5 - Prob. 38ECh. 9.6 - Prob. 1PECh. 9.6 - Prob. 2PECh. 9.6 - Prob. 1ECh. 9.6 - Prob. 2ECh. 9.6 - In Exercises 3–20, solve the triangles with the...Ch. 9.6 - In Exercises 3–20, solve the triangles with the...Ch. 9.6 - In Exercises 3–20, solve the triangles with the...Ch. 9.6 - Prob. 6ECh. 9.6 - In Exercises 3–20, solve the triangles with the...Ch. 9.6 - In Exercises 3–20, solve the triangles with the...Ch. 9.6 - Prob. 9ECh. 9.6 - Prob. 10ECh. 9.6 - Prob. 11ECh. 9.6 - Prob. 12ECh. 9.6 - Prob. 13ECh. 9.6 - Prob. 14ECh. 9.6 - In Exercises 3–20, solve the triangles with the...Ch. 9.6 - Prob. 16ECh. 9.6 - Prob. 17ECh. 9.6 - In Exercises 3–20, solve the triangles with the...Ch. 9.6 - Prob. 19ECh. 9.6 - Prob. 20ECh. 9.6 - Prob. 21ECh. 9.6 - Prob. 22ECh. 9.6 - Prob. 23ECh. 9.6 - Prob. 24ECh. 9.6 - Prob. 25ECh. 9.6 - Prob. 26ECh. 9.6 - Prob. 27ECh. 9.6 - Prob. 28ECh. 9.6 - Prob. 29ECh. 9.6 - In Exercises 21–40, use the law of cosines to...Ch. 9.6 - Prob. 31ECh. 9.6 - Prob. 32ECh. 9.6 - In Exercises 21–40, use the law of cosines to...Ch. 9.6 - Prob. 34ECh. 9.6 - Prob. 35ECh. 9.6 - Prob. 36ECh. 9.6 - In Exercises 21–40, use the law of cosines to...Ch. 9.6 - Prob. 38ECh. 9.6 - Prob. 39ECh. 9.6 - Prob. 40ECh. 9 - Prob. 1RECh. 9 - Prob. 2RECh. 9 - Prob. 3RECh. 9 - Prob. 4RECh. 9 - Prob. 5RECh. 9 - Prob. 6RECh. 9 - Prob. 7RECh. 9 - Prob. 8RECh. 9 - Prob. 9RECh. 9 - Prob. 10RECh. 9 - Prob. 11RECh. 9 - Prob. 12RECh. 9 - Prob. 13RECh. 9 - Prob. 14RECh. 9 - Prob. 15RECh. 9 - In Exercises 15–22, add the given vectors by using...Ch. 9 - Prob. 17RECh. 9 - Prob. 18RECh. 9 - Prob. 19RECh. 9 - Prob. 20RECh. 9 - Prob. 21RECh. 9 - Prob. 22RECh. 9 - Prob. 23RECh. 9 - Prob. 24RECh. 9 - Prob. 25RECh. 9 - Prob. 26RECh. 9 - Prob. 27RECh. 9 - Prob. 28RECh. 9 - Prob. 29RECh. 9 - Prob. 30RECh. 9 - Prob. 31RECh. 9 - Prob. 32RECh. 9 - Prob. 33RECh. 9 - Prob. 34RECh. 9 - Prob. 35RECh. 9 - Prob. 36RECh. 9 - Prob. 37RECh. 9 - Prob. 38RECh. 9 - Prob. 39RECh. 9 - Prob. 40RECh. 9 - Prob. 41RECh. 9 - In Exercises 41–74, solve the given problems.
42....Ch. 9 - Prob. 43RECh. 9 - Prob. 44RECh. 9 - Prob. 45RECh. 9 - Prob. 46RECh. 9 - Prob. 47RECh. 9 - Prob. 48RECh. 9 - Prob. 49RECh. 9 - Prob. 50RECh. 9 - Prob. 51RECh. 9 - Prob. 52RECh. 9 - In Exercises 41–74, solve the given...Ch. 9 - Prob. 54RECh. 9 - Prob. 55RECh. 9 - Prob. 56RECh. 9 - Prob. 57RECh. 9 - Prob. 58RECh. 9 - Prob. 59RECh. 9 - Prob. 60RECh. 9 - Prob. 61RECh. 9 - Prob. 62RECh. 9 - Prob. 63RECh. 9 - Prob. 64RECh. 9 - Prob. 65RECh. 9 - Prob. 66RECh. 9 - Prob. 67RECh. 9 - Prob. 68RECh. 9 - Prob. 69RECh. 9 - Prob. 70RECh. 9 - Prob. 71RECh. 9 - Prob. 72RECh. 9 - Prob. 73RECh. 9 - Prob. 74RECh. 9 - Prob. 75RECh. 9 - Prob. 1PTCh. 9 - Prob. 2PTCh. 9 - Prob. 3PTCh. 9 - Prob. 4PTCh. 9 - Prob. 5PTCh. 9 - Prob. 6PTCh. 9 - Prob. 7PTCh. 9 - Prob. 8PTCh. 9 - Prob. 9PTCh. 9 - Prob. 10PTCh. 9 - Prob. 11PT
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