Answer:
6 , 9
Step-by-step explanation:
Start with the parentheses
Answer:
1:8 for 2:16 and 7/18 for 1:36
Answer:
See step-by-step explanation
Step-by-step explanation:
Question 3: (4, -3)
Solving through elimination: Multiply the first equation by -3.
-3x+6y=-30
3x-5y = 27
Add. The x drops out.
y= -3
Substitute -3 in for y.
x-2y=10
x-2(-3)=10
x+6=10
x=4
Question 4: (2,5)
Solve through elimination: Multiply the second equation with 3.
![\frac{3}{2} x+y=8](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B2%7D%20x%2By%3D8)
![\frac{9}{4} x-y=-\frac{1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B9%7D%7B4%7D%20x-y%3D-%5Cfrac%7B1%7D%7B2%7D)
3/2= 6/4
15/4x=7.5
x=2
3/2 (2) + y = 8
3+ y =8
y=5
Question 5: (6,4)
Use your graph to graph.
![y=-\frac{1}{3} x+6](https://tex.z-dn.net/?f=y%3D-%5Cfrac%7B1%7D%7B3%7D%20x%2B6)
Slope of -1/3
Y-intercept of 6 (0,6)
X-intercept of 18 (18,0)
![y=\frac{3}{2} x-5](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B3%7D%7B2%7D%20x-5)
Slope of 3/2
Y-intercept of -5 (0,-5)
X-intercept of
(
,0)
Question 6: (5, -7)
![Ax+2By=-41](https://tex.z-dn.net/?f=Ax%2B2By%3D-41)
![4Ax-By=88](https://tex.z-dn.net/?f=4Ax-By%3D88)
![3A+2B(4)=-41](https://tex.z-dn.net/?f=3A%2B2B%284%29%3D-41)
![4A(3)-B(4)=88](https://tex.z-dn.net/?f=4A%283%29-B%284%29%3D88)
Solve by substitution:
Words of encouragement:
Good luck!
Answer:
1) G
2) B
3) I
4) H
Step-by-step explanation:
Perimeter of a triangle formula:
P = a + b + c
1)
P = x + 6 + 3x + 2 + 2x + 4
P = 6x + 12
2)
P = 6x + 4 + 7x + 1 + 5x + 7
P = 18x + 12
3)
P = 4x - 3 + 3x + 5x - 6
P = 12x - 9
4)
P = 6x - 8 + 3x + 7 + 5x - 3
P = 14x - 4