Step-by-step explanation:
given :
2x - 3y = 11
-6x + 8y = 34
find : the solutions of the system by using Cramers Rule.
solutions:
in the matrix 2x2 form =>
[ 2 -3] [x] [11]
=
[-6 8] [ y] [34]
D =
| 2 -3 |
|-6 8 |
= 8×2 - (-3) (-6)
= 16-18 = -2
Dx = | 11 -3 |
| 34 8 |
= 11×8 - (-3) (34)
= 88 + 102
= 190
Dy = | 2 11 |
|-6 34 |
= 2×34 - (-6) (11)
= 68 + 66
= 134
x = Dx/D = 190/-2 = -95
y = Dy/D = 134/-2 = -67
the solutions = {-95, -67}
Difference in size, degree,<span> circumstances, etc.; lack of equality.</span>
Answer:
y=-1/3x-17/3
Step-by-step explanation:
I assume you mean <em>perpendicular</em><em> </em>to x=-3.
In that case, we would flip and take the negative. A perpendicular slope would be x=-1/3
Now we plug the point (4,-7) into the equation
y=mx+b
y=-1/3x+b
-7=-1/3*4+b
-7=-4/3+b
b= -17/3
The whole equation would be:
y=-1/3x-17/3
<em>I hope this helps! :)</em>
Answer:
13x^2 - 15x + 12
Step-by-step explanation:
Add like terms.
3x^2 + 10x^2 = 13x^2
-10x + -5x = -15x
4 + 8 = 12
I cant see the picture could u please post another one?
