Answer:
10 mins
Step-by-step explanation:
60/360 = .166667 hours
take this answer an multiply by 60 min to get number of minutes
10 mins.
An x intercept occurs whenever y=0.
y=(x-4)(x+2)
So for y=0, x=-2 or 4, so the x-intercepts are:
(-2, 0) and (4, 0)
Only (-2, 0) is within your answer choices.
I'd say that the total office space was 2,500,000 sq. ft,
16 400,000
----- = -----------
100 x
16x = 40,000,000
x = 2,500,000
For this case we have an equation of the form:

This equation in vertex form is:

where (h, k) is the vertex of the parabola.
We have the following function:

We look for the vertice.
For this, we derive the equation:

We equal zero and clear the value of x:

Substitute the value of x = -7 in the function:

Then, the vertice is:

Substituting values we have:
Answer:
The quadratic function in vertex form is: