Randomization in an experiment is important because it ensures that the treatments have an effect on the response. the individuals who will be in the study were chosen randomly. the groups of subjects are similar, on average, in all respects before applying the different treatments to the different groups. each individual has a fair chance of being included in the study. each treatment is thought of as a value of the explanatory variable.

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Me, the vertices of quadrilateral coat are c(2,0), o(7,0), a(7,2) and t(2,2). prove that coat is a rectangle.

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- 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. 3- 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 part b?