Answer:
AB=14
Step-by-step explanation:
First you write the equation 2(2x-4)=28 because if b is the midpoint then AB is half of the line so you multiply that half by two the make it equal to the whole line.
Then you distribute the two and get 4x-8=28.
Then you add 8 to 28 and get 36.
Then you divide 36 by 4 because the 4 and x are being multiplied together so you have to divide to get them apart.
So then you get x=9 and you aren't done yet because you have to plug x into 2x-4.
So it is 2(9)-4 which is 18-4 which equals 14.
Answer:
489
Step-by-step explanation:
The answer of f(-2) is 42
Answer:
3y(4y-1)-2y(6y-5)=9y-8(3+y)
12y∧2-3y-12y∧2+10y=9y-24-8y
12y∧2-12y∧2-3y+10y=9y-8y-24
7y=y-24
7y-y=-24
6y=-24
y=-24/6=-4
Step-by-step explanation:
