For each of the following, use the rules of matrix algebra to show that the relationship is true. Don’t replace the matrices by matrices with actual numbers nor generic matrices in which you use dot products to perform the multiplication. You should be able to show these using the representation of a matrix by a single letter, which is one of the strengths of the matrix representation of the relationships between values.

what does muffins have to do with anything?

step-by-step explanation:

the answer to this question is 3/19

step-by-step explanation:

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.