# When i press 1,2,3,4,7,8,9,0 then it display 1z,2x,3c,4v,7m,8,,9.,0\ and when i press z,x,c,v,m,,,.,/ then it display 1z,2x,3c,4v,7m,8,,9,./

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Hi there,
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Posted on Jan 02, 2017

This means that your function key is active. To turn it off make sure you have your num lock on and make sure your scroll lock is off.

Posted on Nov 04, 2009

it sounds like its on its way out try ebay for a replacement also check the keyboard conection.

Posted on Oct 08, 2010

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## Related Questions:

### Substitute 4 and -4 for x in the equations y=x+1 and 2y-2=2x. Describe the results

y = x+1
y = (4) + 1
y = 5

y = x + 1
y = (-4) + 1
y = -3

2y - 2 = 2x
2y - 2 = 2 (4)
2y - 2 = 8
2y - 2 + 2 = 8 + 2
2y = 10
2y/2 = 10/2
y = 5

2y - 2 = 2(-4)
2y - 2 = -8
2y -2 + 2 = -8 + 2
2y = -6
2y / 2 = -6 /2
y = -3

The results are the same, implying that they are the same line.

Why?

2y - 2 = 2x
2y - 2 + 2 = 2x + 2
2y = 2x + 2
divide everything by 2
y = x + 1

Good luck,

Paul

Feb 07, 2017 | The Office Equipment & Supplies

### Problems matrix

This is no linear system. You cannot solve it like that using the matrix techniques. Haven't you made a mistake in writing the equations?
If that is tryly the system you want to solve, I suggest that you make a change of variables as follows:
X=1/x , Y= 1/y, Z=1/z (it being understood that x, y, z cannot be equal to 0). You will have to exclude the values x=0, y=0, z=0
Not I am not being sloppy, X and x are different entities, same with Y and y, Z and z.
2X+3Y-1Z=26
1X+3Y-2Z=36
2X+4Y-5Z=52

Now that is a linear system. Solve it using matrices or Cramer's rule, When you obtain X, Y, and Z, get x=1/X, y=1/y, z=1/Z
The actual implementation of the solution method will depend on the exact model of calculator you are using. Not knowing that, I cannot advise you how to do it.

If I have not made any mistakes, the results are X=-58/9,Y=106/9, Z=-32/9. And x, y, z are just the reciprocals of their namesake.

Dec 13, 2013 | Office Equipment & Supplies

### TI-89 dimension mistmatch error

Dimension mismatch error occurs when arguments are not with same dimensions. Two or more arguments must be of the same dimension. For example, [1,2]+[1,2,3] is a dimension mismatch because the matrices contain a different number of elements. By the way, it it very easy to resolving your problem with differentiation. See captured image

As a result of differentiation you had to obtained:

(3b+2c)cos2x+(3c-2b)(sin2x)e^(3x)+2ae^(2x)

Feb 23, 2012 | Texas Instruments TI-89 Calculator

### TI-89 dimension mistmatch error

Dimension mismatch error occurs when arguments are not with same dimensions. Two or more arguments must be of the same dimension. For example, [1,2]+[1,2,3] is a dimension mismatch because the matrices contain a different number of elements. By the way, it it very easy to resolving your problem with differentiation. See captured image

As a result of differentiation you had to obtained:

(3b+2c)cos2x+(3c-2b)(sin2x)e^(3x)+2ae^(2x)

Feb 23, 2012 | Texas Instruments TI-89 Calculator

### Today i was trying to graph y=2x+23, but when ever i would press graph it would pop up window variables domain. What do i do to fix this?

Your ranges for your window settings are more, or less out of bounds with the equation y=2x+23, that you entered.
Press the [green diamond], and the [F2] keys to bring up the graphing coordinates. Enter the following values to fix the graphing coordinates. Starting at the top, xmin= -8, xmax= 8, xscl=1, ymin=0, ymax=40, yscl=1, xres=2. Now, press the [green diamond], and the [F3] keys, and the graph should display.

Dec 18, 2010 | Texas Instruments TI-89 Calculator

### 2X+4Y=-8

2x + 4y = -8 ; divide each side by 2
x + 2y = -4 ; subtract x from both sides
2y = -4 - x ; rearrange
2y = -1x -4 ; divide each side by 2
y = -1/2x - 2 ; relate to slope/intercept form of line (y=mx+b)

implies there are multiple solutions that fall along a line with slope -1/2 and y intercept of -2
'
\ '
++++++++++
\ '
\ '
Sample points on this line are (-4,0), (-2,-1), (0,-2), (2,-3)

Nov 04, 2010 | Mathsoft StudyWorks! Mathematics Deluxe...

### For instance if I have a problem of 4x+1-x=2x-13+5. how do I enter it in my T E to find wha is X

Hi,
This calculator does not have a Solve function or a solver. However this example of yours is very simple that you can do it by hand. If you do not mind I will show you how to solve it. Not everything needs a calculator.
You want to solve for x. OK
1. Start by gathering similar terms 4x-x =3x; -13+5 =-8
2. Rewrite your equation as 3x+1=2x-8
3. Make the +1 change side while changing its sign
4. 4x+1 -1 = 2x-8 -1 or 4x=2x-9
5. Make +2x on the Right hand side go to the left hand side, changing its sign in the process 4x-2x=-9 or 2x=-9
6. Divide both members by 2. This gives
7. x=-9/2 or -4.5 if a decimal result is required.
Hope it helps.

Dec 06, 2009 | Texas Instruments TI-30XA Calculator

### Numbers are appearing on my key hp board when i type how do i fix it for example when i press the following letters a number appears before it: 2x 3c 4v 7m 8, 9.

This means that your function key is active. To turn it off make sure you have your num lock on and make sure your scroll lock is off.

Nov 04, 2009 | HP Wireless Optical Mouse

### Region unlock

Quick 10 Steps:
- Power
- Setup
- Down 2x
- Play
- 253135
- Left
- Down
- 0
- Play
- Setup
Done

Detailed version:

1. turn Power 'On' - slider switch left side of unit

using the included credit card remote:

2. press 'Setup' button, bottom left (next to down arrow button) to display menus

3. 'Down' arrow 2x to Preferences menu

4. press 'Play' > button, center of arrow buttons, to select Preferences menu

5. press numbers: '2,5,3,1,3,5'

6. 'Left' arrow < button

7. 'Down' arrow button

8. you should now see REGION CODE 1 or similar

9. Press '10/0' button for all region, or whatever region you want

10. Press 'Play' > button again

11. Press 'Setup' button to exit menus.

Oct 17, 2008 | Initial IDM-1250 Portable DVD Player

## Open Questions:

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