19. beth leaves her home on her bike, traveling down a long country road, at the rate of 8 mph. her brother, brandon, left 15 minutes after beth on his golf cart along the same country road, traveling 12 mph. how long will it take brandon to catch up with beth?

alot

step-by-step explanation:

its a wood chuck that can chuck wood

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