He vertices of two rectangles are a(−5,−1),b(−1,−1),c(−1,−4),d(−5,−4) and w(1,6),x(7,6),y(7,−2),z(1,−2). compare the perimeters and the areas of the rectangles. are the rectangles similar? explain.

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

5 quiero

6 vamos

7 puedan

8 quiero

9pedemos

10 dorme

step-by-step explanation: