Below is a typical Geometric Two-Column Proof that you will be able to complete by the end of your Grometry course. But right now you only have abfew postulates and theorems in your Geometry toolbox. Using what you already know about the Vertical Angles Theorem, fill in Step 3 of this proof.

(5x-1)^2= (5x)^2-2(5x)×1+(1)^2=25x^2-10x+1

55 degrees because 55+55=110 degrees

answer: the correct option is d.

explanation:

it is given that the triangle j'k'l' shown on the grid below is a dilation of triangle jkl using the origin as the center of dilation.

from the given graph it is noticed that k(4,8) and k'(2,4). let origin is defined by o and scale factor is defined by k, then

    (1)

distance formula,

put these values in equation (1).

therefore scale factor is     and option d is correct.