What is the length of bc in the right triangle below?
answer in the pictures.

a^2 + b^2 = c^2

22^2 + 120^2 = C^2

484 + 14400 = c^2

14848 = c^2

 SQRT (14848) = c

c=122

 the answer is A

1/4 because there is 4 grades.

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