Question about The Office Equipment & Supplies

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Posted on Jan 02, 2017

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SOURCE: how do i use my calulator to slove this problem

The keystrokes you would use to solve the problem is as follows:

(I will use the / to indicate the division symbol)

.5

/

6

X

[( key

12

X

6

)] key

X

1

/

2

X

[( key

6

X

14)] key

=

Posted on Jun 08, 2010

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SOURCE: whenever i enter coordinates for

Two possibilities:

- Graph is out of range (out of the window). If your data is positive set Xmin=0 and Ymin=0. Set Xmax a bit larger than the maximum x-value and YMAX a bit larger than the maximum y-value. You can also press [ZOOM] and select [9:ZoomStat].
- To mark the points you may have select the dot and your calculator screen is too dim.

Before doing statistics, you have to prepare the calculator by clearing old data that may generate errors.

A. TO CLEAR OLD DATA

- Press [2nd][ ] (MEM) to open the memory management screen.
- Press [4:ClrAllLists]
- The command echoes on main screen, press [ENTER] to run it.
- Calculator displays Done.

- Press [STAT][5:SetUpEditor] [ENTER] ; calculator displays Done.

To obtain the correlation coefficient in a statistical analysis on the TI8xPlus family of calculators you must activate the DIAGNOSTICSON option. To access the command

- You press [2nd] [0] (CATALOG)
- While the list of commands is displayed, press [X^-1] (D)
- Cursor jumps to first command that starts with D, dayOfWk(
- Press the DownArrow 9 times to reach DIAGNOSTICSON
- Select it and press [ENTER]
- Command echoes on main calculator screen with blinking cursor
- Press [ENTER] to set the option
- Calculator displays Done.

D. ENTER THE DATA

Press [STAT][1:Edit]

Type in your D (X ) values in L1 and the N (Y) values in L2 (see picture 1). Sorry the picture does not have YOUR values.

TO OBTAIN statistical RESULTS (optional)

- After you finish entering the data, press [2nd][Quit] to exit StatEditor.
- Press [STAT] and highlight Menu (CALC)
- In the list select [2:2-Var Stats]
- Command echoes on main screen.
- Press [ENTER] to calculate the stats

Notice the Down Arrow next to n=7. That means the results screen has more values. Press the Down Arrow to display.

You notice that the n=7 line now has an arrow pointing Up. Notice the Down Arrow on the bottom line (more data is coming). Here is the rest of the statistical results.

There is no arrow at the bottom of the picture. End of statistical results.

The screen captures with 2-Var Stats summarize all the statistics.

However there is no correlation coefficient, no line of best fit, etc. To obtain that you have To perform a regression analysis.

E. PERFORM A REGRESSION ANALYSIS

To perform a regression analysis, you must try several regression models and then find the one that mimics the raw data best. Select Regression model ( exponential, linear, sine, quadratic, etc.) Here I selected Exponential

- Press [STAT] , highlight [CALC]
- In the list of regression models select [0:ExpReg]
- The command ExpReg echoes on main calculator screen.
- If you press [ENTER], you'll get your equation but you will not be able to draw the curve on top of your data to verify the goodness (no it is not a swear word) of the fit. So you must save the equation as a function in Y1 variable.
- While ExpReg command is still in command line, press the [VARS] key.
- Highlight the [Y-VARS] menu and select [1:Function], then press [ENTER].
- In the Y function variable list select [1:Y1]
- At the command line, you have ExpReg Y1.
- Press [ENTER] to save the equation of best fit in Y1.

You also have r and its square.

Since the equation is saved in the Y1 function it can be superposed on the scatter plot. You just have to press GRAPH and it will be drawn. But that will not tell how good the fit is, until you see the function drawn on top of the raw data.

F. DRAWING THE SCATTER PLOT AND BEST FIT CURVE ON SAME SCREEN

Regardless of the curve of best fit, you can draw a scatter plot as follows.

- Press [2nd][Y=] (STATPLOT)
- Select [1:Plot1...Off] and press ENTER to open plot1 configuration screen
- Use arrow to highlight On and press ENTER
- Use the Down Arrow to move cursor to the line Type.
- Select the first icon for a scatter plot. NOTE: To navigate the 6 statistical stat plots on the line Type, use the right or left arrow (to backtrack), but not the Up or down arrows.

Here plot1 is active (ON), it is scatter plot (first icon) the XLIST is L1 by default but you can change it to some other list. Notice the highlighted A cursor on XLIST line. It means that the [ALPHA] keyboard is active.

On the line Mark you can choose the appearance of the raw data point.

And here are your two graphs: the raw data scatter plot and the line of best fit on the same screen. On the picture the ZoomStat option was used.

The graph above represents a parabola and has nothing to do with the sample data entered. But it shows the raw data and the curve of best fit on the same screen.

Posted on Sep 05, 2010

SOURCE: 6x^2-18x^3+12x^2

1. put all the problem in your calculator .. 6x^2-18x^3+12x^2

2. To put the X on the calculator you have to press ALPHA and the button with this sign " ) " .

2. then you have to equalized you requation to zero .. you do that by persing ALPHA and the the buttom that says CALC .. and then you write 0

3. Press SHIFT and the buttom " = "

Posted on Dec 14, 2010

SOURCE: -6x-3y=27

The x intercept is where your line will cross the x axis. Therefore, the value for y at this point is 0. Substitute 0 for y in this equation and solve for x.

6x + 3(0) = 27

x = 27/6

x = 4 1/2

x intercept = (4 1/2, 0)

Follow the same reasoning for the y intercept.

6(0) + 3y = 27

y = 27/3

y = 9

y intercept = (0,9)

Now plot these two points and draw your line through them.

Posted on May 18, 2012

SOURCE: cant get my 3" block plane back together

Pretty hard to help you directly. 3" is a pretty small plane if you mean the length of it, and pretty big if you mean the width.... try Google images for "plane buck", maybe a picture will help. Good luck.

Posted on Nov 05, 2012

How many points do you want to use?

Feb 21, 2015 | Office Equipment & Supplies

Hey! The standard equation of a straight line is y=mx+b (wherein x&y are the coordinates, m is the slope of the line and, b is the y-intercept). Re-arranging your equation to follow the standard equation, you'll have y= -x - 4 or y=(-1)x + (-4).

To plot the equation, try substituting a number to the (x) coordinate to get the value of the (y) coordinate:

Ex:

If x=0, y= -4

If x=1, y= -5

If x=2, y= -6

If x=3, y= -7

Assuming you know how to plot these coordinates, you now have a graph of the equation. Hope I answered your query. Thank you.

To plot the equation, try substituting a number to the (x) coordinate to get the value of the (y) coordinate:

Ex:

If x=0, y= -4

If x=1, y= -5

If x=2, y= -6

If x=3, y= -7

Assuming you know how to plot these coordinates, you now have a graph of the equation. Hope I answered your query. Thank you.

Jun 09, 2012 | Sony HANDYCAM HIDEF 16GB MP4 FL MEM CAM 27...

The x intercept is where your line will cross the x axis. Therefore, the value for y at this point is 0. Substitute 0 for y in this equation and solve for x.

6x + 3(0) = 27

x = 27/6

x = 4 1/2

x intercept = (4 1/2, 0)

Follow the same reasoning for the y intercept.

6(0) + 3y = 27

y = 27/3

y = 9

y intercept = (0,9)

Now plot these two points and draw your line through them.

6x + 3(0) = 27

x = 27/6

x = 4 1/2

x intercept = (4 1/2, 0)

Follow the same reasoning for the y intercept.

6(0) + 3y = 27

y = 27/3

y = 9

y intercept = (0,9)

Now plot these two points and draw your line through them.

May 18, 2012 | SoftMath Algebrator - Algebra Homework...

1. put all the problem in your calculator .. 6x^2-18x^3+12x^2

2. To put the X on the calculator you have to press ALPHA and the button with this sign " ) " .

2. then you have to equalized you requation to zero .. you do that by persing ALPHA and the the buttom that says CALC .. and then you write 0

3. Press SHIFT and the buttom " = "

2. To put the X on the calculator you have to press ALPHA and the button with this sign " ) " .

2. then you have to equalized you requation to zero .. you do that by persing ALPHA and the the buttom that says CALC .. and then you write 0

3. Press SHIFT and the buttom " = "

Dec 13, 2010 | Casio FX-115ES Scientific Calculator

The keystrokes you would use to solve the problem is as follows:

(I will use the / to indicate the division symbol)

.5

/

6

X

[( key

12

X

6

)] key

X

1

/

2

X

[( key

6

X

14)] key

=

(I will use the / to indicate the division symbol)

.5

/

6

X

[( key

12

X

6

)] key

X

1

/

2

X

[( key

6

X

14)] key

=

Jun 08, 2010 | Casio FX-250HC Calculator

The first step here is to draw a rough sketch of the two curves, and find the two points they meet. If you set x^3-6x^2+8x = x^3-4x, then you can rearrange this into the quadratic equation 6x^2-12x = 0. Solving this tells you x=0 or 2 : these are the two x values where the curves meet, and they give the bounds on your integral.

When you sketch the curves, you'll see that x^3-4x is below x^3-6x^2+8x, so the thing you need to integrate is (x^3-6x^2+8x)-(x^3-4x), that is, 12x-6x^2. If you integrate this from 0 to 2, you'll have the answer you need!

When you sketch the curves, you'll see that x^3-4x is below x^3-6x^2+8x, so the thing you need to integrate is (x^3-6x^2+8x)-(x^3-4x), that is, 12x-6x^2. If you integrate this from 0 to 2, you'll have the answer you need!

May 27, 2010 | Computers & Internet

Hii,you can use the following solution
x^3 - 4x^2-12x=0
x(x^2-4x-12)=0
replacing -4x from -6x+2x
x(x^2-6x+2x-12)=0

Now Factoring x(x(x-6) +2(x-6))=0 x(x-6)(x+2)=0 Solution is x=0, x-6=0,x+2=0 1) x=0 2) x-6=0 =>x=6 3) x+2=0 =>x=-2

Now Factoring x(x(x-6) +2(x-6))=0 x(x-6)(x+2)=0 Solution is x=0, x-6=0,x+2=0 1) x=0 2) x-6=0 =>x=6 3) x+2=0 =>x=-2

May 05, 2010 | Vivendi Excel@ Mathematics Study Skills...

Let us start by setting the terminology right: To locate a point on a plane you need two coordinates ( an X-value and a Y-value). If the point is in space, you need a third coordinate which may be called z, but let's us not complicate things unecessarily.

With just two coordinates, we will be able to locate at best one point.

Let us rephrase the problem: When given two sets of coordinates, how to calculate the distance between the two points.

Let (x1,y1) and (x2,y2) be the coordinates of two points in a plane. To calculate the distance between the points, one uses the formula

d (distance)= square root of ( (x2-x1)^2+(y2-y1)^2)

When you calculate the distance you must substitute actual coordinates for X1, Y1, X2 and Y2.

As regards the bearing, I am afraid that I am no expert in maritime nor in aircraft navigation and I will not venture stray out of my area of competence. However, I know that you need an axis that defines the direction with respect to which angles are measured.

If your reference axis is the horizontal axis on a cartesian plane you can determine the angle that the line joining the points makes with that horizontal axis by calculating its cosine, then extract the arcosine.

If (X2-X1) and (Y2-Y1) are both positive then cos(theta)=(X2-X1)/d, where d is the distance (positive value) calculated above.

With just two coordinates, we will be able to locate at best one point.

Let us rephrase the problem: When given two sets of coordinates, how to calculate the distance between the two points.

Let (x1,y1) and (x2,y2) be the coordinates of two points in a plane. To calculate the distance between the points, one uses the formula

d (distance)= square root of ( (x2-x1)^2+(y2-y1)^2)

When you calculate the distance you must substitute actual coordinates for X1, Y1, X2 and Y2.

As regards the bearing, I am afraid that I am no expert in maritime nor in aircraft navigation and I will not venture stray out of my area of competence. However, I know that you need an axis that defines the direction with respect to which angles are measured.

If your reference axis is the horizontal axis on a cartesian plane you can determine the angle that the line joining the points makes with that horizontal axis by calculating its cosine, then extract the arcosine.

If (X2-X1) and (Y2-Y1) are both positive then cos(theta)=(X2-X1)/d, where d is the distance (positive value) calculated above.

Feb 27, 2010 | Casio FX-7400G Plus Calculator

The LG G20 DVD Rewriter is an advanced external burner that supports 'editable' Rewritable DVD+RW disk.

As a generic comment, not all writable/rewritable media are made equal and problem with branded & unbranded disks are not uncommon, so stick to brands that work for you for your specific unit!

The following is the advertised support for your unit, hope it helps:

**Reading Rate**
**DVD-R/-RW/-ROM**
16x/13x/16x/16xSL/12xDL max.
**DVD-RAM**
2x, 3x-5x, 6x-12x
**DVD-Video (CSS)**
4,8x max. (Single/Dual Layer)
**DVD+R/+RW**
16x/13x max./ 12xDL max.
**CD-R/RW/ROM**
48x/40x/48x max.
**CD-DA (DAE)**
40x max.
**Burning Speed**
**DVD-R**
2x, 4x CLV, 8xZCLV, 16x PCAV, 20X CAV
**DVD-RW**
1x, 2x, 4x, 6x CLV
**DVD-RAM**
2x, 3x ZCLV, 3x - 5x PCAV, 12x PCAV
**DVD+R**
2.4x, 4x, 8x, 12x, 16x PCAV, 20X CAV
**DVD+R Double Layer**
2.4x, 4x, 10x, 12x ZCLV
**DVD-R Dual Layer**
2x, 4x, 6x CLV, 10x, 12x ZCLV
**DVD+RW**
2.4x, 4x, 6x, 8x ZCLV
**CD-R**
4x, 8x CLV, 16x, 24x, 32x, 40x, 48x ZCLV
**CD-RW**
4x, 8x, 10x CLV, 16x CLV, 24x, 32x ZCLV

As a generic comment, not all writable/rewritable media are made equal and problem with branded & unbranded disks are not uncommon, so stick to brands that work for you for your specific unit!

The following is the advertised support for your unit, hope it helps:

Dec 28, 2009 | Computers & Internet

the answer is

no real solution.........

simply and you get 12x=12x-5 this is an impossible solution for algebra.

so you would right the answer like this "no real solution"

no real solution.........

simply and you get 12x=12x-5 this is an impossible solution for algebra.

so you would right the answer like this "no real solution"

Oct 07, 2009 | SoftMath Algebrator - Algebra Homework...

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