Check for understanding: AABCADEF. Calculate the value of x. F 48 E A 6.5 19.2 39 3.2 с C X D B ​

r and t.

both are 64 degrees.

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

=

x=0.8898305 is the answer to that equation

the graph line crosses the x axis at both -6 and -2, so the answer would be the second one.