Evaluate the following expression if x = 23, y = 0.6 and z = -9:2(x - y)

201.6 im not sure but if u put this: and meant to put a * multiplacation simble then this should be right.

Step-by-step explanation:

x=23              y=0.6          z=-9       (x-y) = ( 23-0.6 ) = 22.4*9 = 201.6

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