Which property is demonstrated below? StartFraction 17 Over 3 EndFraction times StartFraction 3 Over 17 EndFraction = 1

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

a = 3.14

b = 18

c = 18/5 or 3.6 or 3 3/5

step-by-step explanation:

your answer is #3 , 8 - 3 square root of 11