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Swokowski and Cole - Alg and Trig Classic 12/e (Homework)

James Finch

Math - College, section 1, Fall 2019

Instructor: Dr. Friendly

Current Score : 7 / 14

Due : Sunday, January 27, 2030 00:00 EST

Last Saved : n/a Saving...  ()

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Question
Points
1 2 3 4 5 6 7 8 9
2/2 1/1 1/2 –/1 –/1 0/2 0/1 3/3 –/1
Total
7/14 (50.0%)

  • Instructions

    Create your course assignments by selecting questions from our bank of 1500 end-of-section exercises.

    In this assignment we present several textbook question types found in Chapter 4 on polynomials and rational functions in Algebra and Trigonometry with Analytic Geometry, Classic Edition 12/e by Earl Swokowski and Jeffery A. Cole published by Brooks/Cole. This demo assignment allows many submissions and allows you to try another version of the same question for practice wherever the problem has randomized values.

Assignment Submission

For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or change the answer.

Assignment Scoring

Your last submission is used for your score.

1. 2/2 points  |  Previous Answers SwokATClassic12 2.6.003. My Notes
Question Part
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1/1 1/1
1/50 2/50
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2/2
 
Express the inequality as an interval.
x < −6
     Correct: Your answer is correct.

Sketch its graph.
Use the tools to enter your answer.
Created with Raphaël 2.1.0-10-8-6-4-20246810
Created with Raphaël 2.1.0

NO SOLUTION

Help
Correct: Your answer is correct.
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2. 1/1 points  |  Previous Answers SwokATClassic12 3.1.018. My Notes
Question Part
Points
Submissions Used
1
1/1
2/50
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1/1
 
Which best describes the figure with vertices
A(−5, −2), B(0, −2), C(0, 8), and D(−5, 8)?

     Correct: Your answer is correct.
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3. 1/2 points  |  Previous Answers SwokATClassic12 3.1.030. My Notes
Question Part
Points
Submissions Used
1 2
0/1 1/1
1/50 1/50
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1/2
 
Find all points with coordinates of the form (a, a) that are a distance 6 from P(−5, 1).
(x, y) = 
−11,1
Incorrect: Your answer is incorrect.
 
 (smaller x-value)
(x, y) = 
1,1
Correct: Your answer is correct.
 
 (larger x-value)
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4. –/1 points SwokATClassic12 3.2.072. My Notes
Question Part
Points
Submissions Used
1
–/1
0/50
Total
–/1
 
A circle C1 of radius 7 has its center at the origin. Outside this circle is a circle C2 with its center in the first quadrant of radius 4 that is tangent to C1. The y-coordinate of the center of C2 is 4. Find the x-coordinate of the center of C2.
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5. –/1 points SwokATClassic12 3.3.051. My Notes
Question Part
Points
Submissions Used
1
–/1
0/50
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–/1
 
The growth of a fetus more than 12 weeks old can be approximated by the formula L =1.53t - 6.7, where L is the length (in centimeters) and t is the age (in weeks). Prenatal length can be determined by ultrasound. Approximate the age of a fetus whose length is 26 centimeters. (Round your answer to the nearest whole number.)
weeks
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6. 0/2 points  |  Previous Answers SwokATClassic12 3.4.076. My Notes
Question Part
Points
Submissions Used
1 2
0/1 –/1
4/50 0/50
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0/2
 
The figure illustrates the apparatus for a tightrope walker. Two poles are set y = 50 feet apart, but the point of attachment P for the rope is yet to be determined.
(a) Express the length L of the rope in terms of the distance x from P to the ground.
L=√2500+x2+2
Incorrect: Your answer is incorrect.

(b) If the total walk is to be 75 feet, determine the distance from P to the ground. (Round your answer to one decimal place.)
ft
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7. 0/1 points  |  Previous Answers SwokATClassic12 3.5.015. My Notes
Question Part
Points
Submissions Used
1
0/1
2/50
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0/1
 
Sketch, on the same coordinate plane, the graphs of f for the given values of c. (Make use of symmetry, shifting, stretching, compressing, or reflecting.)
f(x) = −x2 + c;    c = −5, 2, 5
No Solution
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Submission Data

Incorrect: Your answer is incorrect.
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8. 3/3 points  |  Previous Answers SwokATClassic12 3.6.013. My Notes
Question Part
Points
Submissions Used
1 2 3
1/1 1/1 1/1
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3/3
 
Consider the following function.
f(x) = x2 − 4x
(a) Use the quadratic formula to find the zeros of f. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.)
x =
0,4
Correct: Your answer is correct.

(b) Find the maximum or minimum value of f(x).
f(x) = Correct: Your answer is correct.

(c) Sketch the graph of f.
No Solution
Help
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Clear Graph
Delete Layer
Fill

Graph LayersToggle Open/Closed

Submission Data

Correct: Your answer is correct.
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9. –/1 points SwokATClassic12 3.6.035. My Notes
Question Part
Points
Submissions Used
1
–/1
0/50
Total
–/1
 
Find the maximum vertical distance d between the parabola and the line for the green region.
d =
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