Answer:-4x+3y=1
Step-by-step explanation:
First put the equations above one another
-2x+7y=-5
-2x-4y= 6
Just add the corresponding number from the top from the one right below it
-2x plus -2x is 4x
7y plus -4y is 3y
-5 plus 6
Then bring down the equal sign
And you get
-4x+3y=1
Answer:
14
Step-by-step explanation:
(a+b)^2
(a+b)(a+b)
FOIL
a^2 + ab+ab + b^2
Combine like terms
a^2 +2ab + b^2
Rearranging
a^2+b^2 +2ab
We know a^2+b^2 = 4 and ab= 5
4 + 2(5)
4+10
14
I got the answers hopefully okay #17 is 8 times 4 makes 32 biscuits so multiply 2x4 and you get 8 cups of flour #18 A is true B is false C is false and D is true
Answer:
slope=m in mx+b, slope equals change in y/change in x
Step-by-step explanation:
Remember formula y=mx+b. That shows.
Slope=change in y/change in x
Answer:
will make the equation true
Step-by-step explanation:
Given
Required
Which is true for x
We have:
Collect like terms
Solve for x
