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((Soved Matlab) Homework:Chapter O Homework

​Question 1

 

Did you​ notice?  At the bottom left of the​ window, there is a status line that provides directions for the current step. Right now it says

​”Press

Continue to see

more.​”

At the right end of the status​ line, there is a​ button,

decorative image

​,

which opens up a Student Help menu that you can reference for more information.

When an active step requires you to enter an answer or answers before advancing to the next​ step, you can check whether the​ answer(s) in the current active part are correct by clicking the Check Answer button.

In​ general, for a step with an answer​ box, the player allows three incorrect tries before marking the answer box incorrect and displaying the correct answer. Note that on a Homework assignment the Check Answer button changes to say Final Check on your last try.

Type the number 1 in the following answer box.  11

Notice the Question Help dropdown menu on the top right of the window. That menu contains learning aids that demonstrate how to answer similar questions to the one you are working on. Some or all of these learning aids may be available depending on your​ instructor’s settings for this course.

Click the Animation button and watch the​ “How to Enter​ Answers” tour. Then try some of the other learning aids.

​Careful:  The Help Me Solve This link will give you information about solving the problem you are working​ on, but then when you close that​ link, it will reload the​ exercise, requiring you to start over with a similar but different problem.

Some questions will contain​ information, like charts or​ tables, in a popup step. To open the​ popup, click on the icon or the text of the​ hyperlink, as directed.

LOADING…

Click

the icon to view the correct​ answer, OR click here to view the answer.

LOADING…

Type the number shown in the popup. 33

You have completed this problem. You can either go on to the next​ problem, or you can try a similar version of this​ problem, if additional attempts are allowed by your​ instructor, by clicking Similar Question.

 

Question 2

Some questions require you to choose a single correct answer from a list of possible answers.

Click the button near the choice to select your answer. Then click the Check Answer button. You might also want to try an incorrect answer to see the feedback that will be displayed.

Choose the smiling face below.

Did you​ notice?  Questions like the one above use a circular button for each​ choice, and you can only choose one answer from the list for each attempt.

 

Question 3

Some questions allow you to choose several correct answers from a list of possible answers.

Click the square near each correct choice to fill it in. Be sure to mark all correct answers.

Which of the following mathematical statements are​ true? Select all that apply.

A.

1+1=2

Your answer is correct.

B.

1•1=1

Your answer is correct.

C.

1+2=2

D.

2−2=1

E.

1•2=2

Your answer is correct.

Did you​ notice?  Questions like the one above use a square button for each​ choice, and you can choose multiple answers from the list for each attempt.

 

Question 4

Some questions require you to choose an answer from a dropdown list.

Click the dropdown list below to view the​ choices, and then click on the correct answer to select it. To change your​ answer, click the answer box to reopen the list of choices.

To get credit for this​ question, your answer must be

correct

.

​Careful:  Because there are only two answer choices for this​ question, by default you will only get one try to answer it correctly.

 

Question 5

Answer the following question by clicking in the answer box and typing your answer. Then click the Check Answer button.

You might also want to try an incorrect answer to see the feedback that will be displayed.

4+1=55

​(Simplify your answer. Type a whole​ number.)

Did you​ notice? The special navy blue ​instructions, in​ parentheses, that appear after the answer box give directions about how to enter your answer. It is important to read and follow these instructions so that your answer will be entered in the correct form. Unless it is otherwise​ stated, your answer should be exact and simplified as much as possible.

The math tool palette contains templates that you can use to enter​ fractions, exponents,​ roots, and other special math notation. The math tool palette is shown along the bottom of the window and only appears when you click into an answer box. You can expand it to show more tool buttons or collapse it to show fewer buttons.

To use the​ palette:

1. Click on the location in the answer box where you want to insert a symbol or template.
2. Click on the button in the math palette for the symbol or template you want to insert.
3. Once a template is​ inserted, click in the blue box to fill in the necessary​ value(s).
4. Click or use the directional arrows to move the cursor outside the template in order to continue entering your answer.

The math tool palette is not present in this step because there is no answer box. You will be able to practice using the palette in one of the following steps.

​Careful: Always be sure to delete any unused templates from the answer box before clicking​ “Check Answer.” For your answer to be​ complete, all the blue boxes within each template must be filled in.

Select the​ picture(s) below that show answers that are​ complete, meaning that they do not contain any empty blue boxes from a template. Select all answers that are complete.

A.

An answer box contains the expression x minus the fraction 1 over 5, where 5 is in a blue box.

Your answer is correct.

B.

An answer box contains the expression 3x squared plus 4y, with an empty blue box as an exponent on y.

C.

An answer box contains the ordered pair (2, negative 4), with an empty blue box between the 4 and the ).

D.

An answer box contains the expression root 29, with an empty blue box shown as the index of the root.

E.

None of the above answers are complete.

Use the fraction and exponent templates from the math palette​ (or use the associated keyboard​ shortcuts) to enter

x23

into the answer box.

Enter

x23

here.  StartFraction x squared Over 3 EndFractionx23

​Careful! Be sure the exponent 2 is right next to the x inside the fraction. If the exponent is outside the​ fraction, your answer may look similar but will be evaluated differently. You will know your cursor is inside the fraction when the blue box for the fraction template displays. You can tell the exponent is inside the fraction when the fraction bar is extended to display beneath the​ 2, like in the fraction shown above.

The following tips can help you to avoid common mistakes that students make with entering answers into answer boxes.

Equations

Do not enter

​”x=​”

or

​”y=​”

in the answer box if that part of the equation is already given before the answer box.

​Correct: x equals is given before the answer box and 4 is typed in the answer box.
​Incorrect: x equals is given before the answer box and x equals 4 is typed in the answer box.

Click the Continue button to advance to the next step.

Rounding

Answers should only be rounded when the problem specifically asks for a rounded answer. Pay close attention to the rounding instructions given in the problem. Unless otherwise​ instructed, always use the most precise numbers possible when calculating your​ answer, and then round only the final answer to the specified number of decimal places.

Multiple answers

When problems expect multiple answers in a single answer​ box, the answers must be separated by commas. If you are using templates from the math palette in one of those

answers​,

be sure to type the comma outside of the template.

Choose the answer below that has the commas entered in the correct positions.

A.

An answer box contains sqrt(3) comma (1/2 comma) |5| comma 4

B.

An answer box contains sqrt(3) comma (1/2) comma |5 comma| 4

C.

An answer box contains sqrt(3 comma) (1/2) comma |5| comma 4

Your answer is not correct.

D.

An answer box contains sqrt(3) comma (1/2) comma |5| comma 4

This is the correct answer.

​Copy/Paste

Using​ copy/paste is only recommended for copying numbers from an online calculator or spreadsheet program allowed by your​ instructor, or for copying an existing expression from your answer box to duplicate it in that answer box or another answer box.

​Careful! Other programs use different coding for mathematical templates and​ symbols, and so expressions copied in from other programs or websites may not be recognized. It is always a best practice to enter your answer using the keyboard and the math palette.

Alternate Answers and Tolerance

If a problem requires you to round before the final answer or if there are a few different ways to solve a​ problem, there may be multiple answers which are close to each​ other, that are all considered to be correct. Sometimes there will be several particular answers that are​ accepted, and sometimes answers that are within a certain range will be accepted. Try to maintain as much precision as possible when calculating rounded answers.

Enter​ 4, 6, or any number between 4 and 6 in the answer box.

Question is complete. Tap on the red indicators to see incorrect answers.

 

Question 6

Plot a point at the number​ 5, marked with a X on the number line.

On this number​ line, the point is initially shown as a dot located at zero. To move this point to the expected​ location, either click and

drag

the point or click on the graph and use the arrow

keys.

 

Question 7

Some questions make use of the Point Plotting

Tool​,

which allows you to place a point at a specific location on a graph.

LOADING…

 

Click the icon to view instructions for the Point Plotting Tool.

Plot the point

​(−​4,6),

located at the​ X, on the graph to the right.

 

Question 8

Some questions make use of the Interactive Graphing

Tool​,

which allows you to draw a variety of graphs.

LOADING…

 

Click the icon to view instructions for the Interactive Graphing Tool.

Draw a dashed line using the points​ (0,0) and​ (4,4), which are shown on the​ graph, and shade the region of the graph above the dashed line.

Use the line tool button

 

and the dashed selector button

 

on the graphing palette to draw a dashed line using the given points on the graph. Then use the region shading tool

 

to place a shading bucket above the dashed line.

Did you​ notice?  The instructions above say to use the given points when drawing the line. If you draw the line using other​ points, your answer will be incorrect.

 

Question 9

Some questions supply a data

set​,

which must be used in order to answer the question.

You can copy the data set into another​ program, such as a spreadsheet or a statistical software​ program, to perform calculations with the numbers in the given data set.

LOADING…

 

Click the icon to view instructions for copying a data set into another program.

Data   
4 8 9
5 2 7
7 5 8

Add the numbers in the data set either by hand or by using the copy icon

Decorative image

 

to copy the data into a program which can perform the calculation for you.

The result of adding the numbers in the given data set is

 

 

Description

((Soved Matlab) Homework:Chapter O Homework

​Question 1

 

Did you​ notice?  At the bottom left of the​ window, there is a status line that provides directions for the current step. Right now it says

​”Press

Continue to see

more.​”

At the right end of the status​ line, there is a​ button,

decorative image

​,

which opens up a Student Help menu that you can reference for more information.

When an active step requires you to enter an answer or answers before advancing to the next​ step, you can check whether the​ answer(s) in the current active part are correct by clicking the Check Answer button.

In​ general, for a step with an answer​ box, the player allows three incorrect tries before marking the answer box incorrect and displaying the correct answer. Note that on a Homework assignment the Check Answer button changes to say Final Check on your last try.

Type the number 1 in the following answer box.  11

Notice the Question Help dropdown menu on the top right of the window. That menu contains learning aids that demonstrate how to answer similar questions to the one you are working on. Some or all of these learning aids may be available depending on your​ instructor’s settings for this course.

Click the Animation button and watch the​ “How to Enter​ Answers” tour. Then try some of the other learning aids.

​Careful:  The Help Me Solve This link will give you information about solving the problem you are working​ on, but then when you close that​ link, it will reload the​ exercise, requiring you to start over with a similar but different problem.

Some questions will contain​ information, like charts or​ tables, in a popup step. To open the​ popup, click on the icon or the text of the​ hyperlink, as directed.

LOADING…

Click

the icon to view the correct​ answer, OR click here to view the answer.

LOADING…

Type the number shown in the popup. 33

You have completed this problem. You can either go on to the next​ problem, or you can try a similar version of this​ problem, if additional attempts are allowed by your​ instructor, by clicking Similar Question.

 

Question 2

Some questions require you to choose a single correct answer from a list of possible answers.

Click the button near the choice to select your answer. Then click the Check Answer button. You might also want to try an incorrect answer to see the feedback that will be displayed.

Choose the smiling face below.

Did you​ notice?  Questions like the one above use a circular button for each​ choice, and you can only choose one answer from the list for each attempt.

 

Question 3

Some questions allow you to choose several correct answers from a list of possible answers.

Click the square near each correct choice to fill it in. Be sure to mark all correct answers.

Which of the following mathematical statements are​ true? Select all that apply.

A.

1+1=2

Your answer is correct.

B.

1•1=1

Your answer is correct.

C.

1+2=2

D.

2−2=1

E.

1•2=2

Your answer is correct.

Did you​ notice?  Questions like the one above use a square button for each​ choice, and you can choose multiple answers from the list for each attempt.

 

Question 4

Some questions require you to choose an answer from a dropdown list.

Click the dropdown list below to view the​ choices, and then click on the correct answer to select it. To change your​ answer, click the answer box to reopen the list of choices.

To get credit for this​ question, your answer must be

correct

.

​Careful:  Because there are only two answer choices for this​ question, by default you will only get one try to answer it correctly.

 

Question 5

Answer the following question by clicking in the answer box and typing your answer. Then click the Check Answer button.

You might also want to try an incorrect answer to see the feedback that will be displayed.

4+1=55

​(Simplify your answer. Type a whole​ number.)

Did you​ notice? The special navy blue ​instructions, in​ parentheses, that appear after the answer box give directions about how to enter your answer. It is important to read and follow these instructions so that your answer will be entered in the correct form. Unless it is otherwise​ stated, your answer should be exact and simplified as much as possible.

The math tool palette contains templates that you can use to enter​ fractions, exponents,​ roots, and other special math notation. The math tool palette is shown along the bottom of the window and only appears when you click into an answer box. You can expand it to show more tool buttons or collapse it to show fewer buttons.

To use the​ palette:

1. Click on the location in the answer box where you want to insert a symbol or template.
2. Click on the button in the math palette for the symbol or template you want to insert.
3. Once a template is​ inserted, click in the blue box to fill in the necessary​ value(s).
4. Click or use the directional arrows to move the cursor outside the template in order to continue entering your answer.

The math tool palette is not present in this step because there is no answer box. You will be able to practice using the palette in one of the following steps.

​Careful: Always be sure to delete any unused templates from the answer box before clicking​ “Check Answer.” For your answer to be​ complete, all the blue boxes within each template must be filled in.

Select the​ picture(s) below that show answers that are​ complete, meaning that they do not contain any empty blue boxes from a template. Select all answers that are complete.

A.

An answer box contains the expression x minus the fraction 1 over 5, where 5 is in a blue box.

Your answer is correct.

B.

An answer box contains the expression 3x squared plus 4y, with an empty blue box as an exponent on y.

C.

An answer box contains the ordered pair (2, negative 4), with an empty blue box between the 4 and the ).

D.

An answer box contains the expression root 29, with an empty blue box shown as the index of the root.

E.

None of the above answers are complete.

Use the fraction and exponent templates from the math palette​ (or use the associated keyboard​ shortcuts) to enter

x23

into the answer box.

Enter

x23

here.  StartFraction x squared Over 3 EndFractionx23

​Careful! Be sure the exponent 2 is right next to the x inside the fraction. If the exponent is outside the​ fraction, your answer may look similar but will be evaluated differently. You will know your cursor is inside the fraction when the blue box for the fraction template displays. You can tell the exponent is inside the fraction when the fraction bar is extended to display beneath the​ 2, like in the fraction shown above.

The following tips can help you to avoid common mistakes that students make with entering answers into answer boxes.

Equations

Do not enter

​”x=​”

or

​”y=​”

in the answer box if that part of the equation is already given before the answer box.

​Correct: x equals is given before the answer box and 4 is typed in the answer box.
​Incorrect: x equals is given before the answer box and x equals 4 is typed in the answer box.

Click the Continue button to advance to the next step.

Rounding

Answers should only be rounded when the problem specifically asks for a rounded answer. Pay close attention to the rounding instructions given in the problem. Unless otherwise​ instructed, always use the most precise numbers possible when calculating your​ answer, and then round only the final answer to the specified number of decimal places.

Multiple answers

When problems expect multiple answers in a single answer​ box, the answers must be separated by commas. If you are using templates from the math palette in one of those

answers​,

be sure to type the comma outside of the template.

Choose the answer below that has the commas entered in the correct positions.

A.

An answer box contains sqrt(3) comma (1/2 comma) |5| comma 4

B.

An answer box contains sqrt(3) comma (1/2) comma |5 comma| 4

C.

An answer box contains sqrt(3 comma) (1/2) comma |5| comma 4

Your answer is not correct.

D.

An answer box contains sqrt(3) comma (1/2) comma |5| comma 4

This is the correct answer.

​Copy/Paste

Using​ copy/paste is only recommended for copying numbers from an online calculator or spreadsheet program allowed by your​ instructor, or for copying an existing expression from your answer box to duplicate it in that answer box or another answer box.

​Careful! Other programs use different coding for mathematical templates and​ symbols, and so expressions copied in from other programs or websites may not be recognized. It is always a best practice to enter your answer using the keyboard and the math palette.

Alternate Answers and Tolerance

If a problem requires you to round before the final answer or if there are a few different ways to solve a​ problem, there may be multiple answers which are close to each​ other, that are all considered to be correct. Sometimes there will be several particular answers that are​ accepted, and sometimes answers that are within a certain range will be accepted. Try to maintain as much precision as possible when calculating rounded answers.

Enter​ 4, 6, or any number between 4 and 6 in the answer box.

Question is complete. Tap on the red indicators to see incorrect answers.

 

Question 6

Plot a point at the number​ 5, marked with a X on the number line.

On this number​ line, the point is initially shown as a dot located at zero. To move this point to the expected​ location, either click and

drag

the point or click on the graph and use the arrow

keys.

 

Question 7

Some questions make use of the Point Plotting

Tool​,

which allows you to place a point at a specific location on a graph.

LOADING…

 

Click the icon to view instructions for the Point Plotting Tool.

Plot the point

​(−​4,6),

located at the​ X, on the graph to the right.

 

Question 8

Some questions make use of the Interactive Graphing

Tool​,

which allows you to draw a variety of graphs.

LOADING…

 

Click the icon to view instructions for the Interactive Graphing Tool.

Draw a dashed line using the points​ (0,0) and​ (4,4), which are shown on the​ graph, and shade the region of the graph above the dashed line.

Use the line tool button

 

and the dashed selector button

 

on the graphing palette to draw a dashed line using the given points on the graph. Then use the region shading tool

 

to place a shading bucket above the dashed line.

Did you​ notice?  The instructions above say to use the given points when drawing the line. If you draw the line using other​ points, your answer will be incorrect.

 

Question 9

Some questions supply a data

set​,

which must be used in order to answer the question.

You can copy the data set into another​ program, such as a spreadsheet or a statistical software​ program, to perform calculations with the numbers in the given data set.

LOADING…

 

Click the icon to view instructions for copying a data set into another program.

Data   
4 8 9
5 2 7
7 5 8

Add the numbers in the data set either by hand or by using the copy icon

Decorative image

 

to copy the data into a program which can perform the calculation for you.

The result of adding the numbers in the given data set is

 

 

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