Two groups of students were asked how far they lived from their school. the table below shows the distances in miles

group a (distance in miles) 1 1.5 3.03 3.2 2.8 1.5 1.8 2.5 2.2
group b (distance in miles) 2 2.5 3.23 1.3 1.8 2.4 3 1.5 1.8

which statement best compares the mean distances for the two groups?

it is equal for group a and group b.

it is greater for group b than group a.

its value for group a is double the value for group b.

its value for group b is double the value for group a.

Kylie explained that (-4x+9)^2 will result in a difference of squares because (-4x+9)^2 (-4x+9)^2 =(-4x)^2+(9)^2=16x^2+81

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?

Піf x = y and y= z, which statement must be true? оа. -x = -2 b. x= z ос. —x = 2 od. 2= x