2. Efectuati : a) ( 3/4 + 5/6 ) : 2 intregi 1/9 - 1/2 totul la a 2-a = b) ( 1/2 totul la 0 + 1/2 + 1/2 la a 2-a + 1/2 totul la a 3-a ) : ( 2 la 0 + 2 + 2 la 2 + 2 la 3 ) = c) 6/4 totulu la 13 ori 3/2 totul la 8 : 1 intreg 1/2 totul la 19 -2 =

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80

answer: 0.1,0.85

step-by-step explanation:

the battle of gettysburg is considered the "high water mark" of the confederacy because it marked the greatest advance of the confederate forces against the union.