Answer:
I: 4x-5y=-10
II: 2x-7y=4
c) multiply the second equation by -2 and add the result to the first equation
II*-2=-4x+14y=-8
add I+II*-2: 4x-5y+(-4x+14y)=-10-8
=9y=-18
Step-by-step explanation:
Answer:
SA = 2*L*W+2*H+2*W*H
Step-by-step explanation:
The length is the side going from left to right, the width is the side going from front to back, and the height is the side going from top to bottom.
It's 25% because if you divide 55/220 you get 25%.
Hope this helps
-Turtles12345
Answer:
{
}
The number line is attached.
Step-by-step explanation:
By definition Set-builder notation is a mathematical shorthand used to provide specific details about a set.
In this case, you have the following interval:
![(-6,2]](https://tex.z-dn.net/?f=%28-6%2C2%5D)
You can obsseve that the left hand contains a parentheses, which means that -6 it is not included, then:

The right hand contains a bracket, which means that 2 is included:

The inequality is:

Therefore, in Set-builder notation this is:
{
}
Observe the number line attached. Since -6 is not included, you must use an unfilled circle. Since 2 is included, you must use a filled circle.
Answer:
(-6, 6).
Step-by-step explanation:
The x-coordinate increases by 2 units and the y-coordinate by 9 units:
That is ( - 8 + 2, -3 + 9)
= (-6, 6).