Answer:
the answer would be 1/15, or approximately 0.067.
Step-by-step explanation:
You have known the formula Length of base is la division of Area and a haft of the height.
So we have 3

or


and

have fun
Answer:
1478 mi/h
Step-by-step explanation:
The rate of change is the distance divided by the time.

Equation :
This parabola is facing downwards and highest point of the parabola is it's vertex.
Highest point is (-2,2)
so the vertex is (-2,2)
The graph is passing through (-1,0)
Equation in vertex form is


Substitute back in Equation

the graph has two x intercepts -1 and -3
that means (x+1) and (x+3) are the factors
multiply factors to get the equation in standard form

-2x^2-8x-6=0