Help PLZ i need help

Answer/Step-by-step explanation:

A) The temperature in Chicago could be -10*F because -10 is to the right of -13 on the number line.

Higher Temperatures -->

o>I

I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I

-13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1   0  1   2  3  4  5  6  7  8  9 10

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