State whether each of the following questions can or cannot be used to collect statistical information. provide an explanation for each. (a) how many hours of homework do you do?
(b) what were the different prices of the books at the bookstore?
(c) do your family members like to play soccer?

1/2*qr*rs

step-by-step explanation:

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