In this problem, you must change the signs of everything in the parenthesis, which will come to 3x^2 + x - 5x^2 - x + 4. Add like terms, and you will end up with -2x^2 + 4, which is answer choice A. Hope this helped
Answer:
Step-by-step explanation:
Length of a segment between two points
and
is given by the formula,

Coordinates of extreme ends of BC and EF are,
B(1, 4), C(3, -2), E(-3, -2) and F(-1, 1)
Length of BC = 
= 
=
≈ 6.32 units
Length of EF = 
= 
=
≈ 3.61 units
The length of BC is 6.32. The length of EF is 3.61.So, BC and EF don't have the same length.
They are different rows of pennies that’s why they vary
I just want you to know that you do not need some crazy website to help you answer it, you got this if you do not get it right just ask your teacher when you go over it. and when she explains it pay attention I believe in you
Answer: x=6 y=6
Step-by-step explanation:

Since the right parts of the equation are equal, therefore the left parts of the equation are also equal:

Divide both parts of the equation by 2:
