(1 pt) lucas cut a board that is ft long and ft wide. what is the area of the board? express your answer in simplest form. a. sq ft b. sq ft c. sq ft d. sq ft

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

according to egenuity the answer is

step-by-step explanation:

d. 344.22