Why is it important to simplify rational expressions before multiplying or dividing? How do you determine that a rational expression is in simplest form?​

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

Let event a = you roll an even number on the first cube. let event b = you roll a 6 on the second cube. are the events independent or dependent? why?

Which of the following is not a correct form of the quadratic function?