Answered

Westonci.ca offers fast, accurate answers to your questions. Join our community and get the insights you need now. Explore thousands of questions and answers from knowledgeable experts in various fields on our Q&A platform. Explore comprehensive solutions to your questions from knowledgeable professionals across various fields on our platform.

solve the system by the substitution method.
xy=9
x^2+y^2=82

Sagot :

apologiabiology
xy=9 and
x^2+y^2=82
we manipulate the first equation to get
xy=9
divide both sides by x
y=9/x
subtitute y=9/x into x^2+y^2=82
x^2+(9/x)^2=82
x^2+81/x^2=82
multiply both sides by x^2 to get rid of the denomator (bottom number)
x^4+81=82
subtract 81 from both sides
x^4=1
find the fourth root of 1 and get
x=1
subtitute into origoal equation  xy=9 and get
(1)y=9
y=9
We hope this was helpful. Please come back whenever you need more information or answers to your queries. We hope this was helpful. Please come back whenever you need more information or answers to your queries. Thank you for trusting Westonci.ca. Don't forget to revisit us for more accurate and insightful answers.