The cost, in millions of dollars, of building a three-story high school in New York State was estimated to be C(x) = 1.6 + 0.12x − 0.0001x2 (20 ≤ x ≤ 400) where x is the number of thousands of square feet. Suppose that you are contemplating building a for-profit three-story high school and estimate that your total revenue will be $0.16 million dollars per thousand square feet. What is the profit function (in millions of dollars)?

Don't know how to find x given these segment lengths

Polygon abcd is a rectangle what is the area

Two researchers are attempting to create a new psychotherapy protocol that more reduces panic attacks. they believe that they have succeeded and are now in the clinical trial period of their protocol's development. they are working with several cohort groups, some of which have been through the new protocol, while others have done the standard protocol currently recommended. if these researchers are interested in evaluating the difference in the percentage of test subjects who successfully decreased their panic attacks in 2 months on the new protocol versus the percentage of test subjects who successfully decreased their panic attacks in 2 months with the traditional protocol, which of the following statistical tests would be most appropriate? a. analysis of variance (anova) b. correlation c. chi-square test d. paired t-test e. independent t-test