Lead has an atomic mass of 207.19 grams. Mercury has an atomic mass
of 200.6 grams. How much greater
is the atomic mass of Lead than
Mercury?
1
2
3

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:

step-by-step explanation:

just pick what you think i need more time let me know if this

step-by-step explanation: