What would the 'household hourly wage' need to be to make the 'necessary monthly income' in City C? Use 160 hours as the time worked per month. HINT: You are trying to find how much they need to make an hour to have the 'necessary monthly income' stated in #3. ('necessary monthly income' divided by 160)

-81 -56 -27 0 81

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