ashley7890 ashley7890
  • 02-04-2019
  • Mathematics
contestada

Which point is the solution to the following system of equations?

x2 + y2 = 13
2x - y = 4

(3, 2)
(2, 3)
(-3, -2)
(-2, -3)

Respuesta :

Аноним Аноним
  • 02-04-2019

Answer:

Its the point (3, 2).

Step-by-step explanation:

x^2 + y^2 = 13

2x - y = 4

From  the second equation  y = 2x - 4 so substituting in first equation:

x^2 + (2x - 4)^2 = 13

x^2 + 4x^2 - 16x + 16 = 13

5x^2 - 16x + 3 = 0

(5x - 1 )(x - 3) = 0

x = 0.2, 3.

Substitute x = 3 in the second equation:

2(3) - y = 4

y = 6 - 4 = 2.

Answer Link

Otras preguntas

French, Portuguese and Spanish Empires (what did they control in the New World)
Say what floor you go to in order to find these items
Evaluate 6.7- (1 - 3)2 +6.4
1. Edouard et Nathalie _________ a l'hotel.2. Jean Francois __________ a l'ecole.3. Ils ___________ en vacances.4. Julie et moi, nous __________ au match de foo
Why do you think both Wiesel and Annan speak of the importance of truth and personal responsibility?
After making a copy of this document, create 10 unique sentences that contain Double verbs with reflexives. Make sure that you use different subject pronouns (t
What is the root for “con”?
Fill in the table using this function rule.
Which of the following is an advantage of utilizing technology? a. Technology reduces the need for a marketing plan. b. Technology increases the cost of product
Donna-Lynn is preparing a visual display of psychology's early history. One panel is headed "The Gay '90s." It portrays developments in the 1890s. Another panel