Which of the following are possible rational roots of the polynomial function f(x)=5x^2-3x+3

You didn't post any option, but the ration roots theorem states that all possible rational roots of a polynomial come in the form

where p divides the constant term and q divides the leading term of the polynomial. So, in your case, p divides 3 (i.e. it is 1 or 3), and q divides 5 (i.e. it is 1 or 5).

So, the possible roots are

For the record, this parabola has no real roots.

if you need just tell me and i will come to the rescue.

step-by-step explanation:

14 ft 7 inches

step-by-step explanation:

since each model inch corresponds to 25 real inches, 7 model inches will correspond to

7×25" = 175"

at 12" per foot, that is 14 feet, 7 inches.