UI Now that you've created your hypotheses, it's time to prove them. First, look at the sum of two rational numbers. Let's say
they are two rational numbers, and y. Because theyre rational, they can be written as a ratio of integers. Letxe andy
4. where a, b, c, and d are integers and band d do not equalo. The process for finding the sum x + y in terms of a, b, c,
and d is shown,
Reason
Statement
x + y = f & 9
substitution
(5) () + (?) (5)
Croate common denominators,
Simplify
Based on this sum and using the closure property of Integers, who conclusion can you make about the sum of two
rational numbers? Explain your answer.

Which is the completely factored from of xy^3-x^3y

In a study of the relationship between socio-economic class and unethical behavior, 129 university of california undergraduates at berkeley were asked to identify themselves as having low or high social-class by comparing themselves to others with the most (least) money, most (least) education, and most (least) respected jobs. they were also presented with a jar of individually wrapped candies and informed that the candies were for children in a nearby laboratory, but that they could take some if they wanted. after completing some unrelated tasks, participants reported the number of candies they had taken. it was found that those who were identiď¬ed as upper-class took more candy than others. in this study, identify: (a) the cases, (b) the variables and their types, (c) the main research question, (d) identify the population of interest and the sample in this study, and (e) comment on whether or not the results of the study can be generalized to the population, and if the ď¬ndings of the study can be used to establish causal relationships.

Use the irregular polygon below. show all work. a. find the perimeter. b. find the area. the angles of the irregular polygon is 2, 8, 8, and 4.