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thejoshfish
Group Title
Solve the following system.
4x^2 + 9y^2 =72
x^2  y^2 = 5
The solutions are?
 2 years ago
 2 years ago
thejoshfish Group Title
Solve the following system. 4x^2 + 9y^2 =72 x^2  y^2 = 5 The solutions are?
 2 years ago
 2 years ago

This Question is Closed

thejoshfish Group TitleBest ResponseYou've already chosen the best response.0
i've tried to do this at least 5 times. i don't understand it at all
 2 years ago

mathslover Group TitleBest ResponseYou've already chosen the best response.1
dw:1337656235090:dw
 2 years ago

mathslover Group TitleBest ResponseYou've already chosen the best response.1
dw:1337656263685:dw
 2 years ago

mathslover Group TitleBest ResponseYou've already chosen the best response.1
dw:1337656308816:dw
 2 years ago

Outkast3r09 Group TitleBest ResponseYou've already chosen the best response.2
or multiply the second equation by 4
 2 years ago

mathslover Group TitleBest ResponseYou've already chosen the best response.1
dw:1337656338440:dw
 2 years ago

mathslover Group TitleBest ResponseYou've already chosen the best response.1
dw:1337656365038:dw
 2 years ago

mathslover Group TitleBest ResponseYou've already chosen the best response.1
dw:1337656398578:dw
 2 years ago

Outkast3r09 Group TitleBest ResponseYou've already chosen the best response.2
\[4x^2+9y^2=72\] \[4(x^2y^2)=4(5)\]
 2 years ago

mathslover Group TitleBest ResponseYou've already chosen the best response.1
dw:1337656433069:dw
 2 years ago

thejoshfish Group TitleBest ResponseYou've already chosen the best response.0
there's supposed to be 2 solutions: The solutions are: (_,_) & (_,_)
 2 years ago

Outkast3r09 Group TitleBest ResponseYou've already chosen the best response.2
\[4x^2+9y^2=72\] \[4x^2+4y^2=20\] add them together to get \[13y^2=52\]
 2 years ago

thejoshfish Group TitleBest ResponseYou've already chosen the best response.0
trust me, i've gotten all the solutions possible. but the answer is still wrong.
 2 years ago

Outkast3r09 Group TitleBest ResponseYou've already chosen the best response.2
\[y^2=\sqrt{\frac{52}{13}}\]
 2 years ago

mathslover Group TitleBest ResponseYou've already chosen the best response.1
the solutions are : sqrt(52/11) and sqrt(107/11)
 2 years ago

thejoshfish Group TitleBest ResponseYou've already chosen the best response.0
but there's 4 solutions.
 2 years ago

mathslover Group TitleBest ResponseYou've already chosen the best response.1
@ outkast i think y = sqrt(52/11) u wrote y^2 = sqrt(52/13) ?
 2 years ago

Outkast3r09 Group TitleBest ResponseYou've already chosen the best response.2
yeah i think there might be aproblem with your's mine is correct i thinkkk let me check
 2 years ago

Outkast3r09 Group TitleBest ResponseYou've already chosen the best response.2
yeah mine is correct .. by elimination
 2 years ago

mathslover Group TitleBest ResponseYou've already chosen the best response.1
u can write it as : dw:1337656633671:dw
 2 years ago

radar Group TitleBest ResponseYou've already chosen the best response.1
\[y=\pm2\]\[x=\pm3\]
 2 years ago

thejoshfish Group TitleBest ResponseYou've already chosen the best response.0
i also got that ^
 2 years ago

Outkast3r09 Group TitleBest ResponseYou've already chosen the best response.2
i'ma cheat *grabs calculator
 2 years ago

thejoshfish Group TitleBest ResponseYou've already chosen the best response.0
lol, i've done that too! ^
 2 years ago

Outkast3r09 Group TitleBest ResponseYou've already chosen the best response.2
ahh wait mathslover you have 7 instead of 9
 2 years ago

mathslover Group TitleBest ResponseYou've already chosen the best response.1
hey sorry , i took 4x^2 + 7y^2 but it is 4x^2 + 9y^2 , therefore the 4 solutions are : dw:1337656820684:dw
 2 years ago

Outkast3r09 Group TitleBest ResponseYou've already chosen the best response.2
i believe you made a 9 really badly and thought it was a 7 the first equation is 4x^2+9y^2=72
 2 years ago

brinethery Group TitleBest ResponseYou've already chosen the best response.1
For y, I got y= +/ sqrt (52/13)
 2 years ago

Outkast3r09 Group TitleBest ResponseYou've already chosen the best response.2
thats right now for x
 2 years ago

mathslover Group TitleBest ResponseYou've already chosen the best response.1
yes sorry , y = + 2 , 2 x = +3 , 3
 2 years ago

mathslover Group TitleBest ResponseYou've already chosen the best response.1
@Outkast3r09 x = +3 , 3 right ?
 2 years ago

Outkast3r09 Group TitleBest ResponseYou've already chosen the best response.2
\[x^2(2^2)=5\] \[x^2(2^2)=5\]
 2 years ago

brinethery Group TitleBest ResponseYou've already chosen the best response.1
x = +/ 3
 2 years ago

Outkast3r09 Group TitleBest ResponseYou've already chosen the best response.2
\[x^24=5\] \[x^24=5\]
 2 years ago

radar Group TitleBest ResponseYou've already chosen the best response.1
\[\sqrt{52/13}=\pm2\]\[x ^{2}=9\]\[x=\pm3\]
 2 years ago

brinethery Group TitleBest ResponseYou've already chosen the best response.1
I was slow, I was using a crappy calculator.
 2 years ago

Outkast3r09 Group TitleBest ResponseYou've already chosen the best response.2
does this mean it's a multiplicity of 2?
 2 years ago

brinethery Group TitleBest ResponseYou've already chosen the best response.1
@thejoshfish did you try putting in y= +/ sqrt (52/13) and x=+/ 3?
 2 years ago

brinethery Group TitleBest ResponseYou've already chosen the best response.1
@Outkast3r09 it means 3*3 and (3)(3).
 2 years ago

thejoshfish Group TitleBest ResponseYou've already chosen the best response.0
i sure did. haha trust me, i tried everything. i'm so fed up. but you guys are wonderful.
 2 years ago

Outkast3r09 Group TitleBest ResponseYou've already chosen the best response.2
those are your answers are you using like owl or whatever
 2 years ago

brinethery Group TitleBest ResponseYou've already chosen the best response.1
Talk with your instructor. I'm taking statics and have the instructor's manual. They're wrong way more times than I'd like them to be. I think the grad students who write the manuals aren't getting enough sleep.
 2 years ago

Outkast3r09 Group TitleBest ResponseYou've already chosen the best response.2
Online web learning
 2 years ago

Outkast3r09 Group TitleBest ResponseYou've already chosen the best response.2
what does it say the answers are josh?
 2 years ago

thejoshfish Group TitleBest ResponseYou've already chosen the best response.0
alpha omega academy
 2 years ago

thejoshfish Group TitleBest ResponseYou've already chosen the best response.0
it doesn't tell me. but thanks for helping.
 2 years ago

Outkast3r09 Group TitleBest ResponseYou've already chosen the best response.2
sometimes those sites have like a function button with like + and what not . that could be the problem or try 3,3 , 2 ,2
 2 years ago

brinethery Group TitleBest ResponseYou've already chosen the best response.1
If you have to take the higher level physics series, they might make you use MasteringPhysics. Have fun with that! Groans.
 2 years ago
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