8. Alex had 4 plays during his football game. One he ran for 80 yards and made a touchdown. Another he lost 14 yards, then he made a first down by
running 6 yards and then lost 10 yards when he was being chased and fell
backwards. How many yards did Alex actually gain during this game? *

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

investment b is an ordinary annuity with $3,909.64 in the account after one year.

step-by-step explanation:

total of apples - take away four

6-4 = 2

answer is 2 apples