Answer:
66.390
Step-by-step explanation:
4^4 + 1/2
= (4×4×4×4) + 1/2
= 256 + 1/2
= 256 + 0.5
= 256.5
The correct answer would be <u><em>B. 2 - 1/3</em></u>
Answer:
1. Yes
2. No
3.No
Step-by-step explanation:
If you fit the vertex and the y-intercept into that form of the parabola, what you get is this:

and

and 16a=16. Solve that a to get that a = 1. Now you have your true parabola equation in vertex form, which is:

or just

Follow my work here to find the x-intercepts:

(x-4)(x-4)-1=y and

Simplifying by combining like terms gives you this parabola:

In order to find the x-intercepts, or the roots of the parabola as they are also known as, you have to set y equal to 0 (because the x-intercepts are found when y = 0, right?)

Factoring that gives you (x-5)(x-3)=0 and that x-5=0 and x-3=0. Solving each of those simple equations gives you x=5 and x=3 when y=0. So the roots, in the form you require them, are (5, 0) and (3, 0)