Answer:
<u>x= -7 , y= 9</u>
Steps:
4x+3y=-1
5x+4y=1
First, multiply the top equations by -5, and the bottom by 4 to get :
-20x-15y=5
20x+16y=4
Then, you’re going to add the two equations with them being on top of each other so you can easily see what cancels out :
-20x-15y=5
+ 20x+16y=4
———————
0+1y=9
From this, you get :
y=9
Now that you have one variable, find x by substituting 9 for y in one of the equations, I choose :
4x+3y=-1
So :
4x+3(9)=-1
Then simplify by multiplying 3 and 9 :
4x+27=-1
Then subtract 27 on each side :
4x=-28
Then, divide by 4 to get that :
x= -7
Hope this helps!!
A polygon that has 4 sides and two sets of parallel sides is a parallelogram. In a parallelogram, each set of opposite sides is congruent, but all four sides do not have to be congruent.
Well the formula for the quadratic equation is y = -b <u>+</u><span> √b² - 4ac / 2a
</span>Fill in the variables with the information where a = 2, b = 2, and c = -12.
The final answer is <span>y = -2 +</span><span> </span><span><span>√2² - 4(2)(-12) / 2(2)
</span>A simplified answer would be <span>y = -2 <u>+</u> </span></span><span>√4 + 96 / 4, which further simplifies to
</span>y = -2 <u>+</u> 10 / 4
This can be simplified into two answers, either y = -3 or y = 2
X/5 > -2
Multiply 5 on both sides:
x > -10
Draw a graph and draw a line for x > -10
(Look at the attachment below - where the green line is shown make it dotted)
Hope it helped :)