Scratch
archived forums
#101 2011-06-17 21:45:38
- wulfmaster
- Scratcher
- Registered: 2011-04-23
- Posts: 500+
Re: Official Algebra Topic
16Skittles wrote:
wulfmaster wrote:
16Skittles wrote:
@skyline: sorry, but you missed a ton... A factorial (9!) is multiplied, not added
A square is a number times itself, not times 2. look at my answers (above yours)Why do you have ssss' name in your signature?
you don't play minecraft do you...
Lol. Creeper!!!!
Offline
#102 2011-06-17 21:46:27
- 16Skittles
- Scratcher
- Registered: 2009-08-26
- Posts: 1000+
Re: Official Algebra Topic
wulfmaster wrote:
16Skittles wrote:
wulfmaster wrote:
Why do you have ssss' name in your signature?you don't play minecraft do you...
Lol. Creeper!!!!
yup! XD
Offline
#103 2011-06-17 21:51:57
- wulfmaster
- Scratcher
- Registered: 2011-04-23
- Posts: 500+
Re: Official Algebra Topic
16Skittles wrote:
wulfmaster wrote:
16Skittles wrote:
you don't play minecraft do you...Lol. Creeper!!!!
yup! XD
Does that mean ssss is a creeper?
Offline
#104 2011-06-17 21:55:39
- 16Skittles
- Scratcher
- Registered: 2009-08-26
- Posts: 1000+
Re: Official Algebra Topic
wulfmaster wrote:
16Skittles wrote:
wulfmaster wrote:
Lol. Creeper!!!!
yup! XD
Does that mean ssss is a creeper?
IDK... *prepares obsidian shelter full of SDK's guns*
[/offtopic]
Last edited by 16Skittles (2011-06-17 21:56:04)
Offline
#105 2011-06-17 23:31:16
#106 2011-06-18 00:04:26
#107 2011-06-18 00:53:36
- AtomicBawm3
- Scratcher
- Registered: 2009-06-27
- Posts: 1000+
Re: Official Algebra Topic
bbbeb wrote:
I got something for you.
4x^2+11x+22=0
Factor if possible.
Solve.
Just use the quadratic formula:
x= -11+/- sqrt(121-16(22) )/8
x=-11+/- sqrt(121-352) )/8
x=-11+/- sqrt(-231) )/8
x=-11+/- sqrt(231)i)/8
I could go on, but x is not a very nice number...
Offline
#108 2011-06-18 04:42:07
Re: Official Algebra Topic
AtomicBawm3 wrote:
bbbeb wrote:
I got something for you.
4x^2+11x+22=0
Factor if possible.
Solve.Just use the quadratic formula:
x= -11+/- sqrt(121-16(22) )/8
x=-11+/- sqrt(121-352) )/8
x=-11+/- sqrt(-231) )/8
x=-11+/- sqrt(231)i)/8
I could go on, but x is not a very nice number...
Didn't solve it myself, but I'd say it's correct. When plotted on a real plane, the smallest value is 14 (at x ~= -1.3)
In other words, in a real set, S = {∅}
Last edited by LS97 (2011-06-18 04:45:39)
Offline
#109 2011-06-19 14:26:53
Re: Official Algebra Topic
Bump
Offline
#110 2011-06-19 14:32:49
- AtomicBawm3
- Scratcher
- Registered: 2009-06-27
- Posts: 1000+
Re: Official Algebra Topic
Let's bring some logs and powers in:
For this problem, log=log in the base of x and LOG=log in the base of 5
log(1024)=LOG(625)
this really isn't that hard if you know what logs are.
Offline
#111 2011-06-20 03:35:53
Re: Official Algebra Topic
AtomicBawm3 wrote:
Let's bring some logs and powers in:
For this problem, log=log in the base of x and LOG=log in the base of 5
log(1024)=LOG(625)
this really isn't that hard if you know what logs are.
log5(625) = 4
logx(1024) = 4
logx(2) = 2/5
and then i'm stuck 
Offline
#112 2011-06-20 03:53:01
Re: Official Algebra Topic
kayybee wrote:
4^2=16
2!=2
An equation is two expressions each on one side of an equal sign. I got no better definition.
Woot.
a = undefined.
b = a.
Does b = undefined?
Offline
#113 2011-06-20 05:13:02
Re: Official Algebra Topic
rdococ wrote:
kayybee wrote:
4^2=16
2!=2
An equation is two expressions each on one side of an equal sign. I got no better definition.Woot.
a = undefined.
b = a.
Does b = undefined?
Yes. Transitive property.
if a = b and b = c, a = c.
Rethinking it, b and a could technically be 0...
Last edited by LS97 (2011-06-20 05:15:09)
Offline
#114 2011-06-20 14:25:03
Re: Official Algebra Topic
AtomicBawm3 wrote:
Let's bring some logs and powers in:
For this problem, log=log in the base of x and LOG=log in the base of 5
log(1024)=LOG(625)
this really isn't that hard if you know what logs are.
log(1024) = LOG(625)
log(1024) = 4
x = 1024^(1/4)
x = 5.657
Offline