Bello et al-Topics in Contemporary Mathematics 10e (Homework)

James Finch

Math - College, section 1, Fall 2019

Instructor: Dr. Friendly

Current Score : 6 / 30

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

Last Saved : n/a Saving... ()

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Total

6/30 (20.0%)

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.

- relevant textbook pages

- videos of worked examples

In this assignment we present several textbook question types found in Topics in Contemporary Mathematics 10/e by Ignacio Bello, Jack R. Britton, and Anton Kaul 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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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.

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1. 3/4 points | Previous Answers BelloConMath10 1.1.021. My Notes

The figures represent the triangular numbers.

(a) Draw the next triangular number.

(b) Describe the pattern.

At each stage, one row is added, and an arbitrary number of dots are added, as long as the shape is kept triangular. At each stage, one row is added, and two dots are added to the new row. At each stage, one row is added, and but no dots are added to the new row. At each stage, one dot is added to any of the rows of the previous triangular number. At each stage, one row is added, and one dot is added to the new row.

List the next three triangular numbers. (Enter your answers as a comma-separated list.)
1, 3, 6, 10,

15,21,28

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2. –/3 points BelloConMath10 1.1.025. My Notes

A type of figurate number, the pentagonal number, is shown below.

(a) Draw the next pentagonal number.

(b) Describe the pattern.

At each step, increase the length of the bottom and the left lower side of the pentagon by an arbitrary number of units. The number of dots on each side is increased by the same number of units in order to keep the shape pentagonal. At each step, increase the length of the bottom and the left lower side of the pentagon by one unit and remove the innermost pentagon. The number of dots on each side is increased by one unit. At each step, increase the length of the bottom and the left lower side of the pentagon by one unit. A dot is placed on each vertex of the resulting pentagon. At each step, increase the length of the bottom and the left lower side of the pentagon by one unit. The number of dots on each side is increased by one unit. At each step, increase the length of the bottom and the left lower side of the pentagon by an arbitrary number of units. A dot is placed on each vertex of the resulting pentagon.

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3. 0/5 points | Previous Answers BelloConMath10 1.2.001.SBS. My Notes

An investor owns 397.14 shares of a mutual fund valued at $20.11 per share. Find a reasonable estimate of the value of the investor's stock (to the nearest hundred dollars) by rounding 397.14 to the nearest 100 and $20.11 to the nearest dollar.

STEP 1:	Round 397.14 to the nearest 100.
	397.14 ≈

STEP 2:	Round $20.11 to the nearest dollar.
	$20.11 ≈ $

STEP 3:

Use the rounded values to estimate the value in the following formula.

value

(number of shares) · (price per share)

≈

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4. 1/1 points | Previous Answers BelloConMath10 1.2.003. My Notes

A student bought artichokes for $6.40, cucumbers for $2.36, lettuce for $3.75, tomatoes for $1.25, and broccoli for $2.80. Find a reasonable estimate of the total amount the student spent on vegetables by rounding each price to the nearest dollar.
$

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5. 2/7 points | Previous Answers BelloConMath10 1.3.012.MI. My Notes

People who abstain from drinking have double the risk of a particular disease as drinkers. How can we deduce this from the bar graph? Look at the vertical scale (0 to 3.5). (Round your answers to one decimal place.)

(a) What is the risk of this particular disease for current drinking men?

(b) What is the risk of this particular disease for men who abstain?

(c) Estimate how many more times the risk of this particular disease is for abstaining men than for current drinking men?

(d) What is the risk of this particular disease for current drinking women?

(e) What is the risk of this particular disease for abstaining women?

(f) Estimate how many more times the risk of this particular disease is for abstaining women than for current drinking women.

(g) Which category has the highest risk of this particular disease?

current drinking men abstaining men current drinking women abstaining women

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6. –/2 points BelloConMath10 2.1.057. My Notes

7. –/3 points BelloConMath10 2.2.001. My Notes

Let set

A = {1, 2, 3, 4, 5},

B = {1, 2, 5, 6},

and

C = {1, 6, 7}.

Find the following. (Enter your answers in roster notation.)

(a) A ∩ B

(b) A ∩ C

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8. –/2 points BelloConMath10 2.2.017.MI. My Notes

Let

𝒰 = {s, t, u, v, w, x},

A = {s, u, w},

and

B = {t, v, w, x}.

Find each specified set. (Enter your answers in roster notation. Enter EMPTY or ∅ for the empty set.)

(a) (A ∪ B)'

(b) A' ∪ B'

Need Help?

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9. 0/1 points | Previous Answers BelloConMath10 2.3.007. My Notes

Draw a Venn diagram and shade the region representing the specified set.

A' ∩ B'

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10. –/1 points BelloConMath10 4.1.008. My Notes

Translate the Egyptian numeral into decimal notation.

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11. –/1 points BelloConMath10 6.2.004. My Notes

Take x to be an integer and graph the solution set of the sentence.

x + 3 < 6

NO SOLUTION

(
)
[
]

NO SOL

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Bello et al-Topics in Contemporary Mathematics 10e (Homework)

Current Score : 6 / 30

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

Last Saved : n/a Saving... ()

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