Answer:
(2, 3 )
Step-by-step explanation:
Given the 2 equations
3x - 5y = - 9 → (1)
x + 2y = 8 → (2)
Multiplying (2) by - 3 and adding to (1) will eliminate the x- term, that is
- 3x - 6y = - 24 → (3)
Add (1) and (3) term by term to eliminate x
(3x - 3x) + (- 5y - 6y) = (- 9 - 24), that is
- 11y = - 33 ( divide both sides by - 11 )
y = 3
Substitute y = 3 into either of the 2 equations and solve for x
Substituting in (2)
x + 2(3) = 8
x + 6 = 8 ( subtract 6 from both sides )
x = 2
Solution is (2, 3 )
Answer:
Is there a graph?
Step-by-step explanation:
Hello,
x^2+y^2+8x-6y+21=0
Rewritten in the form of a standard circle equation:
(x-(-4))^2+(y-3)^2=2^2
Therefore, the circle properties are:
(a,b)=(-4,3),r=2
The radius of the circle whose equation is <span>x^2 + y^2 + 8x - 6y + 21 =0 is 2.
Faith xoxo</span>
X^2 + x < 20
x^2 + x - 20 <0
set the left side equal 0
(x+5)(x-4) = 0
x + 5 = 0; x = -5
x - 4 = 0 ; x = 4
so solutions:
x has to be between -4 and 5 means
-5 < x < 4
Answer:
75%
Step-by-step explanation:
1/4 = 25%
100% - 25% = 75%
OR
1 - 1/4 = 3/4
100 ÷ 4 = 25
25 × 3 = 75%
I hope this helps and that you have a great day! :)
<em>Ravenna</em>
