Which expression is equivalent to (3 x- 5 y) + (x + 2 y)? A. 4 x- 7 y
B. 4 x - 3 y
C. 4 x + 3 y
D. 4 x + 7 y

the answer is 96 degrees

step-by-step explanation:

you have to realize that a line equals 180 degrees

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

source:

answer: sensy

step-by-step explanation: