A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
Please help!
Use Cramer's rule to solve the following system of equations. Enter your answer as an ordered pair, like this example: (2, 4).
anonymous
 one year ago
Please help! Use Cramer's rule to solve the following system of equations. Enter your answer as an ordered pair, like this example: (2, 4).

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i wish i could help nut I’m literally awful at math.

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1lets see what i remember about cramer's rule..

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1x  2y = 9 3x + y = 1 answer col. determinant form D =  1 2   9 ! 3 1   1 determinant with answer cols. in x Dx =  9 2   1 1  evaluating the determinant we get D = 1  (2*3) = 1 + 6 = 7 Dx = 9  (2) = 7 so by Cramer's rule x = Dx / D = 7/7 = 1

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1To find the value of y first write out Dy by replacing the second column of D by the answer column . Then evaluate y in a similar fashion to the above.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.