What is the area of the rectangle ABCD shown below? (Use the distance formula.) A = bh
A(1,4), B(3,6), C(6,3). D(4.1)

A- 12
B- 5
C- 20
D- 10

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

r = 78539458390583095803458309458039485093485 or just 3

step-by-step explanation:

333.74 ! should be your answer for this question