5.
Italy and France combined for a total of 46 penalties during the 2006 FIFA World Cup.
The penalties were a
combination of fouls, yellow cards (cautions), and red cards (expulsions).
There was one less red card than
half the number of yellow cards and one more foul than 8 times the total number of cards.
How many of each
type of penalty were there during the match?
6.
Michelle Tanner has a piggy bank that has 75 total coins in it that consists of nickels, dimes, and quarters. The
total value of the money in the piggy bank is $12.75.
The number of dimes is also twice the number of nickels
in the piggy bank.
How many of each coin (nickel, dime, quarter) does she have in the bank?
Is it possible?
a.
Is it possible that two matrices, A and B, can be added but not multiplied?
If so, give an example.
If not, explain
why.
b.
Is it possible that two matrices, A and B can be multiplied but not added?
If so, give an example.
If not, explain
why.
c.
Is it possible for two matrices, A and B, to exist such that AB = BA ?
If so, give an example.
If not, explain why.

#### You've reached the end of your free preview.

Want to read both pages?

- Fall '09
- Chorny
- Calculus, Gaussian Elimination, Row echelon form, White House