A 30-ft board is cut into two parts such that the shorter piece is three more than one-half the longer piece. How long is each piece?

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

answer: this is not a question

step-by-step explanation: this is a answer

what's the question?

step-by-step explanation:

there is no question.