Asap 25 pts + brainliest to right/best answer

d  y = (x-3) ^2 -3

Step-by-step explanation:

y = x^2 -6x+6

Complete the square to help find the vertex form

b= -6

b^2/2 = (-6/2) ^2 = (-3)^2 =9

We need to add 9  (and then subtract 9)

y = x^2 -6x +9+6 -9

y = (x^2 -6x +9)-3

We know that (x-b/2) ^2 is what we have now

y = (x-3) ^2 -3

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet

the first option is the answer.