Additive inverses combine to get 0. So, k is -1.4. The sum is 0. Hopefully that will help.
I don't know if you have multiple choices, but it could be: 2x-9
As the 2 quadrilaterals are congruent the sides of one quadrilateral are equal to the corresponding sides of the other quadrilateral
Hence,
AB = PQ
RQ = BC
AD = PS
DC = RS
Since terms for both AB and PQ are given we can equate the terms and find m
5m -9 = m + 11
5m -m = 11 + 9
4m = 20
m = 5
Correct answer is D , 5
To be honest i have no idea what the answer is but do you know a sentence for the word scientific theory
