Answer:

Step-by-step explanation:
The equation of a quadratic function in vertex form is given by:

Where (h,k) is the vertex.
It was given in the question that the vertex of the parabola is (-1,4).
When we substitute the vertex into the formula we get:

The parabola also passes through (4,19) hence it must satisfy its equation.



We divide both sides by 25 to get:

Hence the quadratic function is:

Answer:
15ft
Step-by-step explanation:
If you redraw it and use a ruler it will be 15 feet.
I don’t know
if you u need an actual answer....but brainliest?
----------------------------------------------------
Given information
----------------------------------------------------
Area = 40ft²
Length = √20 ft
----------------------------------------------------
Formula
----------------------------------------------------
Area = Length x Width
----------------------------------------------------
Find Width
----------------------------------------------------
40 = √20 x width
Width = 40 ÷ √20
Width = 40 ÷ 2√5
Width = 20 ÷ √5

one hour 55 min
you just need to subtract bout to get the answer