Help i am confused and im not sure how to answer this

y=(x-4)²

Step-by-step explanation:

(a-b)²=a²-2ab+b²

(x-4)²=x²-2×x×4+4²

(x-4)²=x²-8x+16

y=(x-4)²+1.

Step-by-step explanation:

1) if to re-write the given equation y=x²-8x+C, then 'No Roots' is possible, if C>16;

2) among the given answers the only has 'No roots', it is y=(x-4)²+1, in it C=17.

0.85 or 85%

step-by-step explanation:

1) divide 23 by 27

2) round the decimal to the nearest 10

3) so your answer would be 0.85 or 85%

why can't you?

step-by-step explanation: