Answer:
Step-by-step explanation:
-6x^2 - x + 4x^2 - 10x + 1 = -2x^2 - 11x + 1
you should put true
7.5.
A square has 4 equal sides so:
4x = 9 + 10 + 11 where x is the length of one side of the square.
4x = 30
x = 7.5.
here you have the answers
-3/4
