Answer:
Me, I just learned it, I can help
Step-by-step explanation:
Formula:
ax^2 + bx + c
1) <span>B)3x+6y=22
6x+12y=44
because the equations are equivalent to each other
2*(3x+6y=22) -----> 6x+12y=44
2) </span><span>5x+10y=15 should be multiplied by -2, to get 5x*(-2)=-10x, and x then can be eliminated
</span><span>A)-2</span>
If angles are the same, then their opposite edges also the same. So 2x-6 = x
If you solve it you will find x=6
The slope is -1 as picking any two points, and finding (y2-y1)/(x2-x1)=-1
Opposite sides of a rectangle are congruent
10 + 2x = 18
2x = 18 - 10
2x = 8
x = 8/2
x = 4