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Finite Lab 3

# Finite Lab 3 - (2 points#2 Answer 3 Let-= 4 5 7 2 A and-= c...

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Math 120 Spring 2008 Brodnick Lab #3: 2.2, 2.3, 3.1, & 3.2 1. Use Gauss-Jordan reduction to solve the system given by the following matrix D . After solving and simplifying, list the entry given by 23 d . (3 points) #1 Answer: - - a c a 3 3 1 2 4 6 2. A bag of coins contains nickels, dimes, and quarters. There is a total of 21 coins in the bag, and the total amount of money in the bag is \$3.35. There is one more dime than there are nickels. How many quarters are in the bag?

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Unformatted text preview: (2 points) #2 Answer: 3. Let --= 4 5 7 2 A and --= c B 2 3 1 8 . Compute and simplify T B A 3 2-. (2 points) #3 Answer: 4. Let -= 1 3 2 4 c a A and --= 5 1 4 3 1 2 B . Compute and simplify AB . (2 points) #4 Answer: 5. Translate the following system of equations into matrix form: #5 Answer: 8 2 3 4 4 3 2-= +-=-=--z y x z z y x...
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Finite Lab 3 - (2 points#2 Answer 3 Let-= 4 5 7 2 A and-= c...

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