20. a technician can test video player chips at the rate of chips per hour (for ), where t is the number of hours after 9: 00 am. how many chips can be tested between 11: 00 a. m. to 3: 00 p. m.? (assume for 9: 00 a. m.)
(show work)

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

b, 20 yards

step-by-step explanation: