Step-by-step explanation:
o ne demek kaarrrşiömm hııı
Answer:
5
Step-by-step explanation:
4.9 is closer to 5 than 4
Answer:
vertex = (0, -4)
equation of the parabola: 
Step-by-step explanation:
Given:
- y-intercept of parabola: -4
- parabola passes through points: (-2, 8) and (1, -1)
Vertex form of a parabola: 
(where (h, k) is the vertex and
is some constant)
Substitute point (0, -4) into the equation:

Substitute point (-2, 8) and
into the equation:

Substitute point (1, -1) and
into the equation:

Equate to find h:

Substitute found value of h into one of the equations to find a:

Substitute found values of h and a to find k:

Therefore, the equation of the parabola in vertex form is:

So the vertex of the parabola is (0, -4)
Answer:
17/6 miles or 2 5/6 miles
Step-by-step explanation:
The train is 17/2 miles
She ran 1/3 of the way
Multiply 1/3*17/2
1/3*17/2 = 17/6
We can change this to a mixed number
17/6 miles =2 5/6 miles