Andy is always looking for ways to make money fast. lately, he has been trying to make money by gambling. here is the game he is considering playing: he draws a card from a deck. if he gets a number card (2-10), he wins nothing. for any face card (jack, queen or king), he wins $3. for any ace, he loses $5.

what is andy’s expected profit per game?

step-by-step explanation:

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b