Answer:
(- 5, 0), (3, 4)
Step-by-step explanation:
Given the 2 equations
2y - x = 5 → (1)
x² + y² - 25 = 0 → (2)
Rearrange (1) expressing x in terms of y
x = 2y - 5 → (3)
Substitute x = 2y - 5 into (2)
(2y - 5)² + y² - 25 = 0 ← expand parenthesis and simplify
4y² - 20y + 25 + y² - 25 = 0
5y² - 20y = 0 ← factor out 5y from each term
5y(y - 4) = 0
Equate each factor to zero and solve for y
5y = 0 ⇒ y = 0
y - 4 = 0 ⇒ y = 4
Substitute these values into (3) for corresponding values of x
y = 0 : x = 0 - 5 = - 5 ⇒ (- 5, 0)
y = 4 : x = 8 - 5 = 3 ⇒ (3, 4)
Answer:
1 1/2
hope this helped!
Step-by-step explanation:
2/3 = 4/6
4/6 + 5/6 = 9/6
9/6 = 1 1/2
brainliest?
2y^2 (3x+5z)
6xy^2 + 10zy^2
<span>2/3+y−1/9=7/9
y = 7/9 + 1/9 - 2/3
y = 8/9 - 2/3
y = 8/9 - 6/9
y = 2/9</span>