Which set of ordered pairs represents a function? {(7,-3), (9, -9), (7,9), (5, 1)}
{(2,8),(-1, -7), (-2, -3), (-8, -7)}
{(2,7), (6,6), (9,-6), (6, -7)}
{(5,7),(-9,-4),(0, 5), (0, -2)}
St Answer

which of the following can speed up the rate at which the liver breaks  

down alcohol?

question 1 options:

carbohydrates  

coffee  

nothing  

high-protein meals  

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