Erica has already prepared 5 kilograms of dough and will continue preparing 1 kilogram of dough every hour. write an equation that shows the relationship between the hours worked h and the dough prepared d. write your answer as an equation with d first, followed by an equals sign.

Total prepared = 5 kg (previously prepared)+ 5 kg prepared in  5 hrs = 10 kg  

Step-by-step explanation:

1 kg/hr × 5 hr = 5 kg dough prepared in 5 hours  (This is Erica has  prepared in 5 hours)

Total prepared = 5 kg (previously prepared)+ 5 kg prepared in  5 hrs = 10 kg  

step-by-step explanation:

i think you should think about the question and not look online.

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