2. The students in a weight-loss aerdbics class have been weighed both before and after the 5-week class, with the following results: Person Number Weight Before Weight After 198 lb 194 lb 2 154 151 3 124 126 4. 110 104 127 162 5 123 155 7 141 129 8 180 165 Using the 0.05 level of significance, evaluate the effectiveness of the program Use Dependent Samples T-Test.

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A: Cos(B) = ?

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Q: 2. Let V be the set of all real numbers with the two operations and defined by u v=u+v- 2 and ku =…

A: Note: Since you have posted a question with multiple sub-parts, we will solve the first three…

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A: Use tan theta

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A: e) -1+ is greater than -1, so we will take the second piece of the function

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