Answer:
3. [1, −2]
2. [−3, 3]
1. [−7, 10]
Step-by-step explanation:
3.
{7⁄2x - ½y = 9⁄2
{3x - y = 5
-6⁄7[7⁄2x - ½y = 9⁄2]
{−3x + 3⁄7y = −3 6⁄7 >> New Equation
{3x - y = 5
_________________
-4⁄7y = 1 1⁄7
-2 = y [Plug this back into both equations above to get the x-coordinate of 1]; 1 = x
__________________________________________________________
2.
{−3x + 9y = 36
{4x + 12y = 24
¾[4x + 12y = 24]
{−3x + 9y = 36
{3x + 9y = 18
______________
18y = 54
___ ___
18 18
y = 3 [Plug this back into both equations above to get the x-coordinate of −3]; −3 = x
__________________________________________________________
1.
{4x − y = −38
{x + y = 3
_____________
5x = -35
___ ____
5 5
x = -7 [Plug this back into both equations above to get the y-coordinate of 10]; 10 = y
I am joyous to assist you anytime.
Answer:
The answer is 26cm
Step-by-step explanation:
what I did was that I divide 130/5 which gave me 26
The perimeter of the polygon will be (2x + 2xy + y + xz). Then the correct option is D.
<h3>What is a polygon?</h3>
The polygon is a 2D geometry that has a finite number of sides. And all the sides of the polygon are straight lines connected to each other side by side.
The figure is given below.
The sides of the polygon are given as x, y, xz, x, xy, and xy.
Then the perimeter of the polygon will be
The perimeter of the polygon is given as the sum of all the sides of the polygon.
Then the perimeter will be
P = x + y + xz + x + xy + xy
P = 2x + y + 2xy + xz
More about the polygon link is given below.
brainly.com/question/17756657
#SPJ1
Answer is 17.7 gallons. Just use 10 gallons x 177%. It's me again, mark as branliest tq
Answer: −
3
X
−
x
−
4
Step-by-step explanation:
