How many ways can 7 students be selected from an organization of 30 to attend a national conference? Determine the number of possibilities for selection. Express your solution in a complete sentence reflective of the scenario.

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:

multiple all that

step-by-step explanation:

27×17

thats one

step-by-step explanation: