0.8888888 = 8/9
2.8888888 = 26/9
-2.888888 = -26/9
200/5 = 40...she should read at least 40 per day to reach her goal
Answer:
Step-by-step explanation:
x²+10x+21=0
x²+10x+(10/2)²-(10/2)²+21=0
x²+10x+25-25+21=0
(x+5)²-4=0
(x+5)²=4
(x+y)²=(x+y)(x+y)=x(x+y)+y(x+y)=x²+xy+xy+y²=x²+2xy+y²
(x+y)²=x²+2xy+y²
coefficient of x=2y
y²=[(coefficient of x)/2]²=(2y/2)²=y²
Answer:
im not 100 percent sure but i think he right
Step-by-step explanation:
