Andrew solved the equation: 4/x^2-8x 12 =x/x-2 1/x-6. he said that 2 is an extraneous solution because it creates a 0 in the denominator. is andrew correct in his thinking? explain how you know.

853.3

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