# Posts by mery

Total # Posts: 5

**linear algebra**

Hello, how can I proof the next theorem? I have a linear transformation T(X) that can be express as T(X)=AX and A is an orthogonal matrix, then ||T (X)||=||X|| , I was doing this: ||T (X)||=sqrt(<AX,AX>) But I don't know what to do with the orthogonal matrix.. Please...

**financial management**

Data for Barry Computer Company and its industry averages follow: A. Calculate the indicated ratios for Barry. B. Construct and extend DuPont evaluation for both Barry and the industry. C. Outline Barry’s strengths and weaknesses as revealed by your analysis. D. Suppose ...

**Math**

the length of a rectangle is 8 in more than its width. the perimeter of the rectangle is 54 cm. what are the width and length of the rectangle?

**business/law**

what is a status of affirmative action today? Have things improved? What does the future hold?

**crosswords social studies**

My crosswords for question of george washington carver He showed-----the uses of peanutus 8laters

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