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Tussy et al - Developmental Mathematics for NC (Homework)

James Finch

Math - Developmental, section A, Fall 2019

Instructor: Dr. Friendly

Current Score : 35 / 37

Due : Monday, December 23, 2019 14:00 EST

Last Saved : n/a Saving...  ()

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35/37 (94.6%)

  • Instructions

    Create your course assignments by selecting questions from our bank of end-of-section exercises, as well as enhanced interactive examples with videos.

    Students can view and hear additional instruction through the 2-5 minute Watch It links. Students will also find helpful links to online excerpts from their textbook, tutorials, and videos.

    Every problem includes a link to the appropriate section of a complete interactive eBook, (also available through a dynamic table of contents from the student's WebAssign homepage), allowing students to highlight and take notes as they read.

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    This book also includes a Personal Study Plan (PSP). Once PSP is enabled for your course, your students can use chapter and section assessments to gauge their mastery of the material and generate individualized study plans that include various online, interactive multimedia resources.

    In this assignment we present several textbook question types found in Developmental Mathematics: A Modular Curriculum for North Carolina 1/e by Alan S. Tussy, R. David Gustafson, Diane R. Koenig published by Brooks/Cole.

    Click here for a list of all of the questions coded in WebAssign. 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.

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1. –/7 points TussyModNC1 1.11.APP.002. My Notes
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–/7
 
Each right triangle shown below has large red squares drawn on each of its three sides. Count the number of small squares inside each of the large red squares. Fill in the blanks to discover a mathematical relationship between your answers.
(a) WebAssign Plot
(No Response)  + (No Response)  = (No Response)
(Square 1)(Square 2)(Square 3)

(b) WebAssign Plot
(No Response)  + (No Response)  = (No Response)
(Square 1)(Square 2)(Square 3)


What is the mathematical relationship between your answers?
    
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2. –/7 points TussyModNC1 1.6.E.08. My Notes
Question Part
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Submissions Used
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–/7
 
EXAMPLE 8 Evaluate:
−4[−2 − 3(4 − 82)] − 2
Strategy
We will work within the parentheses first and then within the brackets. At each stage, we follow the order of operations rules.
Why
By the order of operations, we must work from the innermost pair of grouping symbols to the outermost.
Solution
We work within the innermost grouping symbols (the parentheses) first.
−4[−2 − 3(4 − 82)] − 2
 = 
−4
−2 − 3
4 − (No Response)
 − 2
 		   Evaluate the exponential expression within the parentheses:
82 = 64.
 = 
−4
−2 − 3
(No Response)
 − 2
 		Subtract within the parentheses:
4 − 64 = 4 + (−64) = −60.
 = 
−4
−2 − 
(No Response)
 − 2
 		Multiply within the brackets:
3(−60) = −180.
 = 
−4
(No Response)
 − 2
 		Subtract within the brackets:
−2 − (−180) = −2 + 180 = 178.
 =  (No Response) − 2 Multiply.
 =  (No Response) Subtract:
−712 − 2 = −712 + (−2) = −714.
Self Check 8 Evaluate:
−2[4(22 − 16) + 2] − 12
(No Response)
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3. –/4 points TussyModNC1 1.8.APP.001abcd. My Notes
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–/4
 
Translate each statement into an equation.
(a)     The sale
price (p) 		is $900 minus the
discount (d).
(No Response)

(b)     The
cost of
dining
out (c) 		equals the
cost
of the
meal (m) 		plus $4 for
parking.
(No Response)

(c)     7 times the age
of a dog
in years (d) 		gives the dog's
equivalent
human age (h).
(No Response)

(d)     The
number of
centuries (c) 		is the
number
of years (y) 		divided by 100.
(No Response)
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4. –/2 points TussyModNC1 2.1.APP.002. My Notes
Question Part
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1 2
–/1 –/1
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–/2
 
Fractions are everywhere! We see them while shopping at the mall, driving on the freeway, and cooking in the kitchen. They are also widely used in construction, music, sports, and gardening. In the statement, select any words that describe fractions. (Select all that apply.)
Nine-tenths  of an iceberg is  below  water. Only  one-tenth  is  above  water.


Write the fractions in numerical form. (Enter your answers as a comma-separated list.)
(No Response)
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5. –/7 points TussyModNC1 2.1.VE.002. My Notes
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–/7
 
Watch the video and answer the following questions.
Play
Current Time 0:00
/
Duration Time 0:00
Remaining Time -0:00
Loaded: 0%
Progress: 0%
00:00
Fullscreen
00:00
Mute

Fill in the blanks.
(a)
6
0

This corresponds to dividing a quantity in to (No Response) equal parts, and then considering (No Response) of them. That is (No Response) . Thus
6
0
 is (No Response) .

(b)
15
1
This corresponds to dividing a quantity in to (No Response) equal parts, and then considering (No Response) of them. Simplifying,
15
1
 is (No Response) .
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6. –/1 points TussyModNC1 2.6.APP.002. My Notes
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1
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–/1
 
We have learned that every mixed number has a whole-number part and a fractional part. One method of estimation with mixed numbers is to consider the relative size of the fractional part. If the fractional part of the mixed number is greater than or equal to
1
2
,
 drop the fractional part and add 1 to its whole-number part. If the fractional part of the mixed number is less than
1
2
,
 simply drop its fractional part. Use this estimation method for the following problem.

Estimate the distance between the Downtown San Diego off ramp and the Sea World off ramp on the 5 Freeway.
(No Response) mi
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7. –/1 points TussyModNC1 2.7.062. My Notes
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Graph each number on a number line. See Example 6.
0.6, −0.4, −2.6, 3.2, −2.1
Created with Raphaël 2.1.0-4-3-2-101234
Created with Raphaël 2.1.0

NO SOLUTION

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8. –/1 points TussyModNC1 3.7.112. My Notes
Question Part
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1
–/1
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–/1
 
The table below shows what percent rap/hip-hop music sales were of total U.S. dollar sales of recorded music for the years 2001-2007. Use the data to construct a line graph.†
2001 2002 2003 2004 2005 2006 2007
11.4% 13.8% 13.3% 12.1% 13.3% 11.4% 10.8%


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9. –/2 points TussyModNC1 4.8.025.CMI. My Notes
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–/2
 
Solve the inequality. Write the solution set in interval notation and graph it. See Examples 3-4.
x + 1 > 5
    

Created with Raphaël 2.1.0012345678910
Created with Raphaël 2.1.0

NO SOLUTION

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10. –/5 points TussyModNC1 5.4.052. My Notes
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–/5
 
Graph the equation using the intercept method. See Example 4.
8x + y = −8
x-intercept      (x, y) =
(No Response) , (No Response)
y-intercept      (x, y) =
(No Response) , (No Response)

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