What is another way to describe a vertical stretch (x, y) → (x, by), followed by a horizontal stretch (x, y) → (bx, y)? A. a dilation with a scale factor of b
B. a reduction with a scale factor of b2
C. a dilation with a scale factor of b2
D. a stretch with a scale factor of b

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:

use formula for the circle a=3.14

step-by-step explanation:

(a) the volume of the cone is 20/3 in3

hence, option a is correct.

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice