4 4/12 x 2 3/4 =11 11/48 true or false
5 1/2 x 5 =25 1/2 True or false

1. False! 11 11/48 = 11.2291666667 Because 4 4/12 x 2 3/4 = 11.9166666667

2. 5 1/2 x 5 = 27.5  And 25 1/2 = 25.5 False!  

Step-by-step explanation:

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

look at photo