Answer:
x=-5
Step-by-step explanation:
-4(x-5)=40
-4x+20=40
-4x=40-20
x=20/-4
x=-5
Answer:
y^2 +8y + 16
Step-by-step explanation:
6y^2 +2y +5 - (5y^2 -6y -11)
I distribute the minus sign
6y^2 +2y +5 - 5y^2 +6y +11
Then I put them vertical.
6y^2 +2y +5
-5y^2 +6y +11
------------------------
y^2 +8y + 16
This is in standard from since the exponential decreases.
Answer:
the first answer choice
A)
Step-by-step explanation:
Answer: b. Side BC and Side KL
Step-by-step explanation:
Only these two lines are in the same positions.
Answer:
x = 6, y =-2
Step-by-step explanation:
5x+2y = 26
3x+2y = 14
Subtract the two equations to eliminate y
5x+2y = 26
-3x-2y = -14
---------------------
2x = 12
Divide by 2
2x/2 = 12/2
x = 6
Now find y
3x+2y = 14
3*6+2y = 14
18+2y = 14
Subtract 18 from each side
18+2y-18 =14-18
2y = -4
Divide by 2
2y/2 = -4/2
y = -2
