Answer:
6/7 or .857
Step-by-step explanation:
It's called a calculator. Merry Christmas.
You can factor out the two, so you get 2(x^2-9). You can simplify it more because it is a difference of squares, so it should be 2(x-3)(x+3)
Answer:
49x^2+28xy+4y^2
= (7x)^2 + 28xy + (2y)^2
= (7x + 2y)^2
= 7x+4y
=D
Step-by-step explanation:
Since the sum of scores must be at least 289:
72+78+70+x ≥ 289