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199 s11 ch 5 rev

# 199 s11 ch 5 rev - Name Math199 Chapter5review/quiz...

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Name:______________________ Math 199 Chapter 5 review/quiz 1VA Direction: Work problems out completely. No work no credit. Write neatly so I can read it. Make sure you go in one direction(left-right or up-down). Circle final answers. Each is worth 1 points. If you use a calculator, write down what the screen looks like. (i.e. all the steps you use in the calculator to get the answer, including the augmented matrix) Questions 1-10: The total output of loudspeaker systems of the Acrosonic Company in their three production facilities for May and June is given by the matrices A and B , respectively. The unit production costs and selling prices for these loudspeakers are given by matrices C and D , respectively. Find the following: 1. What are the dimensions of each matrix? A.________ B.________ C.________ D.________ 2. Find a 12 , b 32 , c 23 , d 41 . a 12 _______ b 32 _______ c 23 _______ d 41 ______ 3. What is the total output of the company for May and June? 4. What is the difference between June and May? 5. The management of Acrosonic has decided to increase its July production of loudspeaker systems by 20% (over June output). Find a matrix giving the targeted production for July.

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