C={z | z is an even integer greater than 26 and less than or equal to 30}

and

Step-by-step explanation:

Let's understand what the question is asking.

"A value C is equal to the value of z such that the value z is an even integer greater than 26 and less than or equal to 30."

The only even values in this range:

are 28 and 30. The reason why 30 is included is because z is an integer greater than 26 and less than or equal to 30.

So your answer would be:

and

You can also write it as:

C = {28, 30} if asked to answer in set notation.

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:

439400

step-by-step explanation:

130^2 = 16900

16900*26 = 439400