John o'sullivan has just completed his first year in business. his records show that he spent the following in advertising:

internet $600 radio $650 yellow pages $700 local flyers $400

what percent of john's advertising was spent on the yellow pages? (round to the nearest hundredth percent.)

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

p

step-by-step explanation: