Can some one help me with Dilation rule plz

B. (x, y)  -->  (7/2x, 7/2y)

Step-by-step explanation:

I can't tell for sure, so I am assuming the large circle is the image, Circle C', and the small circle is the original circle C.

The radius of circle C is 2 units.

The radius of circle C' is 7 units.

To find the scale of the dilation divide the new size by the old size.

New size: 7 units

Old size: 2 units

scale: 7/2

The scale of the dilation is 7/2.

B. (x, y)  -->  (7/2x, 7/2y)

step-by-step explanation:

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.