what do the variables represent in ax+by=c?
also, how do you write in correct format x%26gt;14 or x%26gt;20? is it 14%26lt;x%26gt;20? or sumthing else?
also,
simplify the following:
1. (-2x^2y)^2 (-2x^2y)^3
2. [6(x-1)^2] / [18(x-1)^3]
3. 8x^-2
4. {[x^2] / [y^3]}^-3
5. (2x^-2) / [(4y)^-3]
6. (x^2-4) / (2x-4)
Factor the following completely:
7. 9-x^2
8. 4x^3 + 8x^2 +4x
9. 3x^2 - 48y^2
10. 4x^2 + 20xy +25y^2
11. x^2+5x+84
12. 30a^2 - 5a -5
13. p^2-2p- pt +2t
14. 3x^2 - 2xy +6x -4y
Solve:
15. x^2-x-72=0
16. x^3-9x=0
17. x^2-x-6=0
i no its super long, but PLZZZZ help me i really need help SHOW ALL THE WORK PLZ. i am trying to learn how to do this stuff. :( crazy hard for me
Ax+by=c help!?
i dont understand the ax+by= c
i know that is linear equation in standard form
x is input, y= output
youcan find x,y -intercept
make sure u typed it right.
x%26gt;14 or x%26gt;20 you can not write 14%26lt;x%26gt; 20
you need to write on separate part like the first time you have
if the problem wants you to combine 2 of them together then answer is x%26gt; 20
1.(-2x^2y)^2 (-2x^2y)^3 did you mean multiplication here? then
4x^4y^2 *(-8x^6y^3)
-32x^10y^5
2. . [6(x-1)^2] / [18(x-1)^3]
[6(x-1)^2 ]/[ 18(x-1)^2 *(x-1)]
1/[3(x-1)]
3. 8x^-2
8/x^2
4. {[x^2] / [y^3]}^-3
x^-6/ y^-9
y^9 / x^6
5.(2x^-2) / [(4y)^-3]
(2/x^2)/[ 4^-3 *y^-3]
(2/x^2)/[ 1/(64y^3)]
128y^3 / x^2
6. (x^2-4) / (2x-4)
(x-2)(x+2) /[2(x-2)]
(x+2)/2
7. 9-x^2
(3-x)(3+x)
8.4x^3 + 8x^2 +4x
4x(x^2 +2x+1)
9. 3x^2-48y^2
3(x^2-16y^2)
10.
4x^2+20xy+25y^2
(2x+5y)^2
(2x+5y)(2x+5y)
11. x^2+5x+84
can not factor i think you typed wrong that should be - 84, not pluse 84
x^2+5x-84
(x+12)(x-7)
12. 30a^2 -5a-5
5( 6a^2 -a-1)
5(2a-1)(3a+1)
13.p^2-2p- pt +2t
p(p-2) -t(p -2)
(p-2)(p-t)
14. 3x^2-2xy+6x-4y
x(3x-2y) +2(3x-2y)
(3x-2y)(x+2)
15. x^2-x-72=0
(x-9)(x+8)=0
x-9=0 or x+8=0
x=9 or x= -8
16. x^3 -9x=0
x(x^2-9)=0
x= 0, x^2-9=0
x=0, x^2=9
x=0, x= -3, x= 3
17. x^2-x-6=0
(x-3)(x+2)=0
x-3=0 or x+2=0
x=3 or x =-2
that is long problem i cant guarantee to be always correct plz check the answer before writing down .
Friday, July 31, 2009
My p.c freezes after 5 minutes of use!when i try run any of my anti virus/spy software etc,it freezes.help plz
im using the following anti spyware/virus programs.ntl netgear,ad aware s.e,counter spy,ewido antispy,avg free,yahoo antispy on toolbar and spybot search and destroy,but soon as they get near my program files during a scan the p.c freezes up it is as though it knows !!!!obviously it is in the program files but i cant get near it to cure it.can any one suggest a remedy? i have tried reformatting my hard drive ,but it wont let me !even tho nothing i can see is accessing it,it tells me there is ...!? its clearly some very clever virus of some kind.....help please!!
My p.c freezes after 5 minutes of use!when i try run any of my anti virus/spy software etc,it freezes.help plz
there are a few problems here,first you have far too many security programs running,the 2 anti-spyware programs you should use are spybot and adaware,uninstall the others they are not needed and are causing conflicts within your operating system
with reference to your anti-virus,avg is the worst possible program you could use,it has a terrible interface and its detection rate is diabolicle,it misses viruses and tells you that you are infected when you arnt
avast 4 is a brilliant anti0virus program(http://www.avast.com/eng/avast_4_home.ht... works well with the above spyware software
with reference to formatting your drive ,why not use a 98 or me start up disk,get one from http://www.bootdisk.com/bootdisk.htm,dow... the 98 oem link and transfer it on to floppy by running the program.exe
when you reboot your p.c set your floppy as 1st boot device in bios and then once the start up disk has loaded,type a:/ format c: to format your hard drive
then when it has finished ,insert your windows xp disk and then turn off your p.c....wait 10 seconds...then boot up,press delete,and in bios change 1st boot device to cd-rom and save and exit,your xp disk will then boot up with"press any key to boot from cd" press a key and then follow instructions for xp installation
also remember to take out he floppy disc after the format,
good luck
Reply:malware frequently tries to hide, esp. from something that will find/remove it.....are you running all these scans at once? if yes, that itself may cause a logjam... 'panda' antiv use to have a free on line scan..... they are good folks w/nice software, try them (on line).... be wary of some sites, they actually give ya' some junk, then make you pay to get rid of it. you mite try 'avast!' freeware; run it independ. of other scans.....
Reply:For one, youve got too much security going on. They conflict with oneanother, plus theyre all fee, you are looking for trouble..ewido and counterspy are no name programs and probabably dowloaders of spyware, and trojans..like most free scan my pc now online crap. Sorry, but its rubbish you cant reformat. Thats what a reformat is...your doing it wrong.
Youve gone too far down the road of downloading free rubbish, which has loaded other rubbish. Your system has had it.
Go to a pc shop, let them re format , or do research to get a proper boot disk, you can never, Not reformat. Only a reformat will save you, and it sounds like you need expert, hands on help.
Sorry mate, but it does look dire...
Reply:Far too many running at the same time - you need to get rid of some of the above - remember to run them one at a time so they dont conflict with each other.
Personally I would only keep avg and ad aware and spybot.
Perhaps try Microsoft spyware program too - available on their site (apparently but I have never used it)
If your still having problems maybe its time to reinstall as there may be a corrupt file.
Reply:noadware
yahoo toolbar
and avg
remove all others
to meny conflicts
Reply:boot pc with xp/windows disc in and format it from there.... you seem to have too many things protecting you.. you only need 2 or maybe 3... definately needed is norton, ad-aware'se and if you want to, windows defender.. thats all you need... if you still cant format the thing.. download a format system free from download.com
Reply:Sounds like the operating system is a piece of c r a p. You don't use Microsoft by any chance?
Reply:It could be a virus. Consider re-installing windows - your documents will be kept unless you want to back them up. Try also starting your computer in Safe Mode - see if it crashes then. If you cannot use your Program files etc, your in deep s#@t. I would consider taking it to a technichian who would remove your HD and format it.
Or it could be that your proccessor is becoming too hot - the fan isnt doing the job, therefore locking up the computer.
Reply:Have you tried running your programs in Safe mode? I'd also uninstall AVG as its past its sell by date, and switch to Avast! anti virus, it also deals with some trojans.
Download Avast from http://www.avast.com, disconnect from the net and install.
Remember to turn off System Restore as it will be hiding in there and will re-install itself.
Boot into Safe Mode and run Avast!, Ewido and Ad Aware SE Personal.
To get into safe mode, repeatedly press the F8 key after the bios screen loads but before Windows loads, if you don't manage it first time just restart and try again.
Safe mode looks very different and not all your programs will load but don't worry, its supposed to do that. The screen will run at 800 x 600. The scans will take a bit longer so just leave it to get on with it.
If that doesn't work, post back.
My p.c freezes after 5 minutes of use!when i try run any of my anti virus/spy software etc,it freezes.help plz
there are a few problems here,first you have far too many security programs running,the 2 anti-spyware programs you should use are spybot and adaware,uninstall the others they are not needed and are causing conflicts within your operating system
with reference to your anti-virus,avg is the worst possible program you could use,it has a terrible interface and its detection rate is diabolicle,it misses viruses and tells you that you are infected when you arnt
avast 4 is a brilliant anti0virus program(http://www.avast.com/eng/avast_4_home.ht... works well with the above spyware software
with reference to formatting your drive ,why not use a 98 or me start up disk,get one from http://www.bootdisk.com/bootdisk.htm,dow... the 98 oem link and transfer it on to floppy by running the program.exe
when you reboot your p.c set your floppy as 1st boot device in bios and then once the start up disk has loaded,type a:/ format c: to format your hard drive
then when it has finished ,insert your windows xp disk and then turn off your p.c....wait 10 seconds...then boot up,press delete,and in bios change 1st boot device to cd-rom and save and exit,your xp disk will then boot up with"press any key to boot from cd" press a key and then follow instructions for xp installation
also remember to take out he floppy disc after the format,
good luck
Reply:malware frequently tries to hide, esp. from something that will find/remove it.....are you running all these scans at once? if yes, that itself may cause a logjam... 'panda' antiv use to have a free on line scan..... they are good folks w/nice software, try them (on line).... be wary of some sites, they actually give ya' some junk, then make you pay to get rid of it. you mite try 'avast!' freeware; run it independ. of other scans.....
Reply:For one, youve got too much security going on. They conflict with oneanother, plus theyre all fee, you are looking for trouble..ewido and counterspy are no name programs and probabably dowloaders of spyware, and trojans..like most free scan my pc now online crap. Sorry, but its rubbish you cant reformat. Thats what a reformat is...your doing it wrong.
Youve gone too far down the road of downloading free rubbish, which has loaded other rubbish. Your system has had it.
Go to a pc shop, let them re format , or do research to get a proper boot disk, you can never, Not reformat. Only a reformat will save you, and it sounds like you need expert, hands on help.
Sorry mate, but it does look dire...
Reply:Far too many running at the same time - you need to get rid of some of the above - remember to run them one at a time so they dont conflict with each other.
Personally I would only keep avg and ad aware and spybot.
Perhaps try Microsoft spyware program too - available on their site (apparently but I have never used it)
If your still having problems maybe its time to reinstall as there may be a corrupt file.
Reply:noadware
yahoo toolbar
and avg
remove all others
to meny conflicts
Reply:boot pc with xp/windows disc in and format it from there.... you seem to have too many things protecting you.. you only need 2 or maybe 3... definately needed is norton, ad-aware'se and if you want to, windows defender.. thats all you need... if you still cant format the thing.. download a format system free from download.com
Reply:Sounds like the operating system is a piece of c r a p. You don't use Microsoft by any chance?
Reply:It could be a virus. Consider re-installing windows - your documents will be kept unless you want to back them up. Try also starting your computer in Safe Mode - see if it crashes then. If you cannot use your Program files etc, your in deep s#@t. I would consider taking it to a technichian who would remove your HD and format it.
Or it could be that your proccessor is becoming too hot - the fan isnt doing the job, therefore locking up the computer.
Reply:Have you tried running your programs in Safe mode? I'd also uninstall AVG as its past its sell by date, and switch to Avast! anti virus, it also deals with some trojans.
Download Avast from http://www.avast.com, disconnect from the net and install.
Remember to turn off System Restore as it will be hiding in there and will re-install itself.
Boot into Safe Mode and run Avast!, Ewido and Ad Aware SE Personal.
To get into safe mode, repeatedly press the F8 key after the bios screen loads but before Windows loads, if you don't manage it first time just restart and try again.
Safe mode looks very different and not all your programs will load but don't worry, its supposed to do that. The screen will run at 800 x 600. The scans will take a bit longer so just leave it to get on with it.
If that doesn't work, post back.
Will J.C. and i ver get back together. i mean i am kinda of punk rock and he is totally punk rock. HELP PLEASE
J.C is sorta tall and he has black hair. I am sorta kinda tall and i have short brown hair. We are both straight A students but we arent geeks. We both have like everything in common except he is nothing but punk rock and I am nothing but prepish and girly girl. We used to go out on and off but then he met Mallory Anderson and then because of her I lost him. I used to talk to him everyday because he called me. After he met Mallory he changed his entir image just so that he had a chance to go out with Mallory . After she said no to him he decided that he liked the punk rock thing so he stayed the same and he has been like this for a year now. I asked him if he is ever going to be back to his normal self and he just starts to yell at me i tell him that he is just pissed off because he asked Mallory out and she turned him down so dont take all your anger and whatever it is of yours out on me. but i dont know what is going on so will someone help me???
Will J.C. and i ver get back together. i mean i am kinda of punk rock and he is totally punk rock. HELP PLEASE
so, he's punk now huh? well... I used to be a normal person until I met a guy. Its like, when I first saw Aaron, I remember thinkin that he was soo cool. Some people though he was weird and sorta of a loner. But not really he just hung out with just punks and cool people. So I changed my image...I became punk. And to tell you the truth, I sorta liked it. Just the feeling, its way cool. So I met him and we talked and stuff, and I met more punks.
CONCLUSION: I dont want to be my old self again, I found my image, my friends. Maybe he just found his, and loves it. :)
Reply:well if he yells at you when you ask him, he might not be worth it because he may not even be willing to change. And teally theres no point in waiting for him to do so. You should just try to move on because the longer you wait the worse it will get. Hope that helps.
Will J.C. and i ver get back together. i mean i am kinda of punk rock and he is totally punk rock. HELP PLEASE
so, he's punk now huh? well... I used to be a normal person until I met a guy. Its like, when I first saw Aaron, I remember thinkin that he was soo cool. Some people though he was weird and sorta of a loner. But not really he just hung out with just punks and cool people. So I changed my image...I became punk. And to tell you the truth, I sorta liked it. Just the feeling, its way cool. So I met him and we talked and stuff, and I met more punks.
CONCLUSION: I dont want to be my old self again, I found my image, my friends. Maybe he just found his, and loves it. :)
Reply:well if he yells at you when you ask him, he might not be worth it because he may not even be willing to change. And teally theres no point in waiting for him to do so. You should just try to move on because the longer you wait the worse it will get. Hope that helps.
Can you help me in C?
What function should I use to clear a screen in C? And what is the header file to include?
For example, my code is:
#include %26lt;stdio.h%26gt;
#include %26lt;conio.h%26gt;
main()
{
printf("\nType anything!!!");
printf("\nType anything!!!");
printf("\nType anything!!!");
printf("\nType anything!!!");
getch();
// I want to place the code here that clears the screen...
}
Please help me... Im new in C...ΓΌ. Thanks
Can you help me in C?
Use clrscr(); just after the opening the main function. It works for C++ and it will surely work also for C; I didn't know they are so similar.
Reply:Now that you've included both header files, just use this:
clrscr();
That's the library function for clear screen. If you're on linux use:
system.clear();
Reply:Just use clrscr(). This function is defined in conio.h, and you have alreday included this file.
Reply:please use this
clrscr();
this is used for clear the screen
deliver flowers
For example, my code is:
#include %26lt;stdio.h%26gt;
#include %26lt;conio.h%26gt;
main()
{
printf("\nType anything!!!");
printf("\nType anything!!!");
printf("\nType anything!!!");
printf("\nType anything!!!");
getch();
// I want to place the code here that clears the screen...
}
Please help me... Im new in C...ΓΌ. Thanks
Can you help me in C?
Use clrscr(); just after the opening the main function. It works for C++ and it will surely work also for C; I didn't know they are so similar.
Reply:Now that you've included both header files, just use this:
clrscr();
That's the library function for clear screen. If you're on linux use:
system.clear();
Reply:Just use clrscr(). This function is defined in conio.h, and you have alreday included this file.
Reply:please use this
clrscr();
this is used for clear the screen
deliver flowers
Central A/C - Help, I'm Melting!!?
My digital thermometer is not registering my room temperature below 80 degrees and my A/C keeps running non-stop.
I have changed the batteries, checked the filter, and reset the thermostat and nothing. nada. zilch! I have had no choice but to shut the unit because I can't have it running continually nor do I want a zillion dollar electric bill.
I am thinking that the thermostat may not be working right - I can't imagine how my house is hotter than it is outside. Somethings not right and I am tearing my hair out!
Thanks in advance for your help.
Central A/C - Help, I'm Melting!!?
sounds like your A/C has lost its refrigerant charge. You will need to get the leak fixed and the system recharged
Reply:Ah me too. Plugging it in and off. I was told 3 things. Either the thermostat is broken, a line from the unit to the thermostat is shorted out, or the sensor above the heating plate/burner is broken and not telling the fan when to kick off.
I have changed the batteries, checked the filter, and reset the thermostat and nothing. nada. zilch! I have had no choice but to shut the unit because I can't have it running continually nor do I want a zillion dollar electric bill.
I am thinking that the thermostat may not be working right - I can't imagine how my house is hotter than it is outside. Somethings not right and I am tearing my hair out!
Thanks in advance for your help.
Central A/C - Help, I'm Melting!!?
sounds like your A/C has lost its refrigerant charge. You will need to get the leak fixed and the system recharged
Reply:Ah me too. Plugging it in and off. I was told 3 things. Either the thermostat is broken, a line from the unit to the thermostat is shorted out, or the sensor above the heating plate/burner is broken and not telling the fan when to kick off.
I want to download turbo c++or borland c++ to do programs. can u help me?
i tried and download borland c++ compiler 5.5
i even saw the website for its detailed instructions
but i am able to work with the compiler
plz help me
I want to download turbo c++or borland c++ to do programs. can u help me?
Turbo C++ is, as far as I am aware, a dos based program, which will not work properly if you are using windows.
If you still want it, here are the links:
http://dn.codegear.com/article/20841 (turbo c++ 2.01)
http://dn.codegear.com/article/21751 (turbo c++ 1.01)
Borland C++ 5.5 would work on windows, but as you noted is very difficult to use.
If you are trying to learn c++ programming I would suggest one of the following tools:
Dev CPP:
http://www.bloodshed.net/dev/devcpp.html (The first link under downloads)
Eclipse:
http://max.berger.name/howto/cdt/
Microsoft Visual C++ 2005 Express:
http://msdn.microsoft.com/vstudio/expres...
These are all great tools to learn, but unfortunately none of them have easy support for graphical applications.
If you are looking to develop windows GUI programs (graphical user interface), such as most applications which are in use today, you can do that by using one of the free libriaries for c++ graphics:
wxWidgets, ATL, qt...
But that is an advanced topic in c++, also not very easy to write such applications.
If you are looking for a quick tool to get started with windows applications then you might wish to consider switching on to C# (which is kinda new, but becoming very popular) by Microsoft. It is based on .NET and there is a download on the visual studio express link that I posted above. With this it is much easier to create regular windows applications, also the language is very similar to c++.
Hope that helps.
i even saw the website for its detailed instructions
but i am able to work with the compiler
plz help me
I want to download turbo c++or borland c++ to do programs. can u help me?
Turbo C++ is, as far as I am aware, a dos based program, which will not work properly if you are using windows.
If you still want it, here are the links:
http://dn.codegear.com/article/20841 (turbo c++ 2.01)
http://dn.codegear.com/article/21751 (turbo c++ 1.01)
Borland C++ 5.5 would work on windows, but as you noted is very difficult to use.
If you are trying to learn c++ programming I would suggest one of the following tools:
Dev CPP:
http://www.bloodshed.net/dev/devcpp.html (The first link under downloads)
Eclipse:
http://max.berger.name/howto/cdt/
Microsoft Visual C++ 2005 Express:
http://msdn.microsoft.com/vstudio/expres...
These are all great tools to learn, but unfortunately none of them have easy support for graphical applications.
If you are looking to develop windows GUI programs (graphical user interface), such as most applications which are in use today, you can do that by using one of the free libriaries for c++ graphics:
wxWidgets, ATL, qt...
But that is an advanced topic in c++, also not very easy to write such applications.
If you are looking for a quick tool to get started with windows applications then you might wish to consider switching on to C# (which is kinda new, but becoming very popular) by Microsoft. It is based on .NET and there is a download on the visual studio express link that I posted above. With this it is much easier to create regular windows applications, also the language is very similar to c++.
Hope that helps.
37.5wks going to be medically induced or c section....please help!?
I am 37.5wks preggers and I went back to OB today and he reconfirmed that as early as next friday 25th he will start the process of medically inducing or c section....advised c section is more likely. I have gestational diabetes (diet controlled) and slightly high blood pressure that is stable 140/90....what if anything can I do to go into labour naturally??? At a pinch medical inducing will be ok but I rather do all safe inducing methods before a c section! Bub measured exactly 7lbs last week so I dont fear it being under weight if early. Please help.
37.5wks going to be medically induced or c section....please help!?
What finally drove me into labor with my first was going to a bazzar, walking around all day buying gifts for my family. They say not to lift any more than 20lbs, right? So, try this variation, get a 19lb backpack and start walking! Walk it out, with a well planned route, make sure people *know* the route and what time you expect to be back. Pick a route with plenty of places to stop for b-room breaks and to use the phone, or carry a cell. Walk walk walk!
Reply:i'd ask to get induced they cant make you have a c-section unless the baby is in real danger. If he's unwilling to induce you i'd get another doctor and explian why you dont want a c-section.
I was induced with my first as she showed signs of distress she was born 3hrs from my waterbreaking.
Your baby wont come unless it's ready so i dont think a "nataural" labour inducing is a opition but things that are said to work are
sex, hot food e.g currys, fast walks. A sweep (preformed by your midwife) if you explian why you want one you should be allowed.
37.5wks going to be medically induced or c section....please help!?
What finally drove me into labor with my first was going to a bazzar, walking around all day buying gifts for my family. They say not to lift any more than 20lbs, right? So, try this variation, get a 19lb backpack and start walking! Walk it out, with a well planned route, make sure people *know* the route and what time you expect to be back. Pick a route with plenty of places to stop for b-room breaks and to use the phone, or carry a cell. Walk walk walk!
Reply:i'd ask to get induced they cant make you have a c-section unless the baby is in real danger. If he's unwilling to induce you i'd get another doctor and explian why you dont want a c-section.
I was induced with my first as she showed signs of distress she was born 3hrs from my waterbreaking.
Your baby wont come unless it's ready so i dont think a "nataural" labour inducing is a opition but things that are said to work are
sex, hot food e.g currys, fast walks. A sweep (preformed by your midwife) if you explian why you want one you should be allowed.
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