For triangle abc, which side is opposite angle b? ac ab bc

AC

The side opposite vertex B will not have B as one of the letters in its designation. That is, sides AB and BC are adjacent, not opposite. Only side AC is opposite angle B.

Side AB is the hypotenuse of this triangle (the longest side; the side opposite the right angle).

the size of the resulting matrix is 1-by-3.

step-by-step explanation:

the size of the two matrices given are as follows:

no .of rows of matrix 1 = 1

no .of columns of matrix 1 = 3

no .of rows of matrix 1 = 3

no .of columns of matrix 1 = 3

to find the size of the resulting matrix without actually solving the multiplication of the matrix, this is what you do:

if resulting matrix = matrix 1 * matrix 2

no. of rows of the resulting matrix = number of rows of matrix 1

no. of columns of resulting matrix = number of columns of matrix 2

note: the order of the matrices matter!

idk

step-by-step explanation: