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anonymous
 one year ago
3. Solve the system by the substitution method. Show your work.
2y  x = 5
x2 + y2  25=0 ?
anonymous
 one year ago
3. Solve the system by the substitution method. Show your work. 2y  x = 5 x2 + y2  25=0 ?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0y(4y + y  20) = 0 so, y = 0 or 4y+y20 = 0 5y 20 = 0 y =45y20=05(4)20=00=0 x = 2y 5when y=4x = 85 =32y  x = 5x2 + y2 25 = 02y  x = 5 2y  5 = x so x = 2y  5 (2y  5)² + y²  25 = 0 (2y  5)(2y  5) 4y²  10y  10y + 25 4y²  20y + 25 4y²  20y + 25 + y²  25 = 0 4y² + y²  20y = 0 4y² + y²  20y = 0 y(4y + y  20) = 0 y=0 x= 5 2y  x = 5 2(0)  x = 5, so x= 5) (5,0) this wwas my answer

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0my teacher said 3. Solve for x using equation 1 and then substitute this in the second equation. Once you simplify you will have a quadratic equation which you can factor and solve. Remember to factor out the GCF first.. The solutions should be written as ordered pairs (x1,y1) and (x2,y2).

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Abhisar @Clalgee @dan815 @ganeshie8

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0if my answer is correct what did she mean she only gave me two out of five points for thisw question

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@nevermind_justschool

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0For one, you should have two solutions

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0somone sadi to use (3,4)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\(2y  x = 5\) → \(x=2y5\) \(x^2 + y^2  25=0\) \((2y5)^2+y^225=0\) \(4y^220y+25+y^225=0\) \(5y^220y=0\) \(5y(y4)=0\) \(y=0,~y=4\) Back substitute to find x

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok I see. On this line you needed to solve for both y's y(4y + y  20) = 0 You got \(y = 0\), but missed \(4y+y20=0\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0wait there were two y's

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yep. That's a quadratic equation so it has two solutions

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ohh so i nned solve for the second one right

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0can you help me withthat im so sleepy but i needa get this done

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I already put it up there. It's 4

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ohh ik that thnx hahaha see my sleepiness is messing with my brain thnx again padre

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0how do i copy and paste that i cant seem to get it highlighted to copy it and its killing me lol

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0help me one more time please @peachpi

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0idk that happens a lot with chrome. try double clicking the whole thing then deleting what you don't want

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0its mot working when i double click it it hightlights like 1 number

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0maybe try another browser

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i got it highlighted but it wont let me coppy it

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0is there another way you could write it for me or nah

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0why can't you use what you had originally. It's right. Just add the line y = 4, x = 3 at the end

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ohh ok i thought i needed the whole thing sorry

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0no, your stuff is good. you just missed one of the solutions, last step.
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