Answer:
a measure of how strong the ("how fit") the relationship is
it is always positive between 0 and 1
Step-by-step explanation:
coefficient of determination = r^2
r^2 = 0.826^ 2 =.6822
4
Answer: 6x+3y
3x+3(x+y)= 3x+3x+3y=6x+3y
2/3
all you have to do is make 1 1/4 an improper fraction and then use the keep change flip method.