Suppose X is any positive number Circle 1: Center (-7, 4) and radius 8x
Circle 2: Center (-7, 4) and radius2x
Why is circle 1 similar to Circle 2?
.
A - Circle one is a dilation of circle 2 with a scale factor of 4
B - Circle one is congruent to circle 2
C- Circle 1 is a dilation of circle 2 with a scale factor of 0.25
D - Circle 1 and circle 2 have the same diameter​

Explanation is in the file

cutt.ly/zxt1ipy

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct