9514 1404 393
Answer:
(a, b, c) = (-0.425595, 11.7321, 2.16667)
f(x) = -0.425595x² +11.7321x +2.16667
f(1) ≈ 13.5
Step-by-step explanation:
A suitable tool makes short work of this. Most spreadsheets and graphing calculators will do quadratic regression. All you have to do is enter the data and make use of the appropriate built-in functions.
Desmos will do least-squares fitting of almost any function you want to use as a model. It tells you ...
a = -0.425595
b = 11.7321
c = 2.16667
so
f(x) = -0.425595x² +11.7321x +2.16667
and f(1) ≈ 13.5
_____
<em>Additional comment</em>
Note that a quadratic function doesn't model the data very well if you're trying to extrapolate to times outside the original domain.
Answer:
i think it is 3 miles but dunno
Step-by-step explanation:
Answer: 433
Step-by-step explanation:
The given sequence : 19,42,65,88,...
We can see that the terms ha common difference as :-

Thus, its an Arithmetic progression with common difference (d)=23
The formula to find the nth term is :-

Now, the 19th term of the given sequence :-

Hence, the 19th term of 19,42,65,88,... is 433.
Please look at the picture. If you can't see it, I'll write it out for you.