Please help me with this :(​

Step-by-step explanation:

Area = 0.5(base)(height)

= 0.5(12y-3)(y+1)

= 0.5(12y^2+9y-3)

= 6y^2+4.5y-1.5

the answer is 8

step-by-step explanation:

3.14 x 8x8

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