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Re: help me with my math homework

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WrathOfTheElvhen is not online. WrathOfTheElvhen
Joined: 12 Jul 2012
Total Posts: 7754
12 Sep 2016 08:29 PM
this is chapter 11.3, we're looking at boolean algebras

I'm supposed to prove various statements and I'm stuck on this on:

11) xy'=0 if and only if xy=x

help please
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WrathOfTheElvhen is not online. WrathOfTheElvhen
Joined: 12 Jul 2012
Total Posts: 7754
12 Sep 2016 08:35 PM
I need help please, I have a quiz on Wednesday and I'm not sure how to do this :(
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TimeMachines is not online. TimeMachines
Joined: 07 Jun 2016
Total Posts: 3544
12 Sep 2016 08:35 PM
You divide your paper by 2
Problem solved
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WrathOfTheElvhen is not online. WrathOfTheElvhen
Joined: 12 Jul 2012
Total Posts: 7754
12 Sep 2016 08:39 PM
I don't think my math professor would appreciate that

Can't somebody help me? Maybe that OT science guy (DapperNarwhale?) could help?
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TimeMachines is not online. TimeMachines
Joined: 07 Jun 2016
Total Posts: 3544
12 Sep 2016 08:40 PM
Subtract your math teacher from the world.
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cars95953 is online. cars95953
Joined: 01 Jul 2013
Total Posts: 3190
12 Sep 2016 08:40 PM
JUST USE A CALCULATOR OR SEARCH UP THE QUESTION ON GOOGLE
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SethyRioth is not online. SethyRioth
Joined: 08 Feb 2014
Total Posts: 2537
12 Sep 2016 08:41 PM
ask yahoo they're answering-bots
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Astrain1 is online. Astrain1
Joined: 27 Mar 2013
Total Posts: 18697
12 Sep 2016 08:43 PM
hm let's see

in order for xy to equal x, y has to be equal to 1

but in order for xy to equal 0, one of the variables must be equal to 0

since y is already defined, x must be equal to 0

x = 0; y = 1

did i even answer the question


jeb get me the seperatrons | yes nice care love make my rep better


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WrathOfTheElvhen is not online. WrathOfTheElvhen
Joined: 12 Jul 2012
Total Posts: 7754
12 Sep 2016 08:44 PM
"Subtract your math teacher from the world."

Murder is generally frowned upon, and passing a quiz would be the least of my problems then.


"JUST USE A CALCULATOR OR SEARCH UP THE QUESTION ON GOOGLE"

Can't use a calculator, and I can't find the question on google.


"ask yahoo they're answering-bots"

I might ask that stackexchange place, but I don't think they like answering homework questions.
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cars95953 is online. cars95953
Joined: 01 Jul 2013
Total Posts: 3190
12 Sep 2016 08:45 PM
y can't u. Just don't let the teacher no and if you don't have one, buy one at the dollar store. EVEN BETTER BECAUSE IT WOULD BE SMALL SO YOU CAN SNEAK IT IN CLASS!!
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cars95953 is online. cars95953
Joined: 01 Jul 2013
Total Posts: 3190
12 Sep 2016 08:46 PM
Know*
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newshesha23 is not online. newshesha23
Joined: 04 Jul 2010
Total Posts: 128
12 Sep 2016 08:47 PM
You got me...

we will destroy doctor_sally
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WrathOfTheElvhen is not online. WrathOfTheElvhen
Joined: 12 Jul 2012
Total Posts: 7754
12 Sep 2016 08:48 PM
@Astrain1 That doesn't really prove it :( We're working with Boolean Algebras, so I'd have to use laws and theories to somehow prove that xy'=0 if and only if xy=x "if and only if" is a ############## also represented ## iff or ↔ Also note that the apostrophe isn't a typo, it's a unary operator. Kind of like 'not y'. @cars95953 Because a calculator wouldn't help me solve the problem, that's what # meant
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cars95953 is online. cars95953
Joined: 01 Jul 2013
Total Posts: 3190
12 Sep 2016 08:48 PM
Don't do it.
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cars95953 is online. cars95953
Joined: 01 Jul 2013
Total Posts: 3190
12 Sep 2016 08:49 PM
Easy
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WrathOfTheElvhen is not online. WrathOfTheElvhen
Joined: 12 Jul 2012
Total Posts: 7754
12 Sep 2016 08:50 PM
But the question might appear on my quiz on Wednesday D:

I don't want to fail :(
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Lionkillers is not online. Lionkillers
Joined: 17 Feb 2010
Total Posts: 476
12 Sep 2016 08:51 PM
we don't understand this.


ask us about something that has to do with integral calculus; that's easier
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WrathOfTheElvhen is not online. WrathOfTheElvhen
Joined: 12 Jul 2012
Total Posts: 7754
12 Sep 2016 08:52 PM
"ask us about something that has to do with integral calculus; that's easier"

unfortunately I already know how to integrate functions and stuff, so I wouldn't need to ask OT any questions about it
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GIaceons is online. GIaceons
Joined: 29 Jun 2015
Total Posts: 7212
12 Sep 2016 08:53 PM
what lion means: ot is too stupid to help


plant a spooky seed to grow a spooky tree
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bambamman11 is not online. bambamman11
Joined: 23 Sep 2011
Total Posts: 42181
12 Sep 2016 08:53 PM
xy'=0 if and only if xy=x


But if y was equal to zero and x wasn't, xy would still equal zero and this statement would be false, wouldn't it?
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Lionkillers is not online. Lionkillers
Joined: 17 Feb 2010
Total Posts: 476
12 Sep 2016 08:54 PM
when i see y' i immediately think it has to do with taking the derivative of the function y.
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coolestblue is not online. coolestblue
Joined: 07 Dec 2010
Total Posts: 13444
12 Sep 2016 08:55 PM
y and x equal 0


https://www.roblox.com/q-item?id=488661461
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Ninths is not online. Ninths
Joined: 13 Apr 2012
Total Posts: 11465
12 Sep 2016 08:56 PM
11) xy=0 if and only if xy=x
isnt this just true or false
if so, 0x0 = 0, so theoretically they would both be either 0 or 1
which is every boolean theory right

i identify as a counter strike and i find this globally offensive -
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newshesha23 is not online. newshesha23
Joined: 04 Jul 2010
Total Posts: 128
12 Sep 2016 08:58 PM
wow okay lol

we will destroy doctor_sally
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randystunt34 is online. randystunt34
Joined: 19 Jan 2013
Total Posts: 6085
12 Sep 2016 08:59 PM
if xy=0 and if xy=x that means xy*45=45 + (21+ xy)=69 if xy69=x
x=0
xy*x=69

Solved your problem Wheres my tutoring payment.
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